This Old Stamp Is the World’s Most Expensive Object by Weight

It’s hard to believe that a humble stamp could be considered exorbitantly expensive, but at $8.5 million, this 1856 postage stamp is considered the world’s most expensive object by weight.

The world is full of valuable objects, from jewelry to rare artworks, but when it comes to value per gram, nothing even comes close to ‘The British Guiana One-Cent Black on Magenta’, a one-of-a-kind postage stamp that weighs just 40 milligrams but is valued at around $8.5 million. To put that into perspective, the average 0.2-carat diamond (which also weighs 40 milligrams) costs about $700, while the same amount of LSD costs around $5,000. There just isn’t an object that can compare to this ultra-rare stamp in terms of value per weight.

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World’s Most Expensive Drug Costs $3.5 Million Per Dose

Hemgenix, a single-dose cure for a form of the blood-clotting disorder hemophilia, recently set a new world record for the most expensive drug ever at a whopping $3.5 million per dose.

On Tuesday, The US Food and Drug Administration approved Hemgenix, a cutting-edge gene therapy designed to treat adults with hemophilia B, a serious genetic disorder in which people do not produce a critical protein needed to clot blood in case of bleeding. Until now, typical treatments required routine injections to maintain sufficient levels of the missing protein in patients, but thanks to Hemgenix, sufferers of hemophilia B require a single IV infusion to be cured forever. The only problem is that that single dose costs no less than $3.5 million, making Hemgenix the most expensive drug ever.

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Rome’s Villa Aurora – The Most Expensive House in the World

Located on a hill in the heart of Rome and featuring the only ceiling mural ever painted by the Italian Baroque old master Caravaggio, Villa Aurora is widely regarded as the world’s most expensive house.

The 30,000-square-foot, 16th-century villa is located a short walk from the famous Via Veneto, home to some of Rome’s best hotels, and close to the iconic Piazza di Spagna and the ancient Porta Pinciana. Originally a hunting lodge, the villa is all that remains of a 30-hectare complex owned by Italy’s Ludovisi noble family, who gave the country numerous diplomats, patrons of the arts, and even a Pope. Today, Villa Aurora finds itself at the heart of a legal battle and an Italian court has ruled that it should be sold at auction. Only the price set for the property is so high that no one seems interested in paying it.

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The World’s Most Expensive Yacht Allegedly Costs $4.8 Billion, But No One Has Ever Seen It

History Supreme, a super-yacht commissioned by a mysterious Malaysian billionaire and designed by controversial artist Stuart Hughes, is considered the world’s most expensive yacht, but most don’t even believe it exists.

The story of History Supreme is one of the weirdest we’ve ever covered here on Oddity Central. It originally made news headlines over a decade ago, when luxury jeweler and designer Stuart Hughes announced that he had spent three years working on it, after being commissioned by a Malaysian businessman who preferred to remain anonymous. Hughes described his newest creation as the world’s most expensive yacht, priced at a staggering £3 million, or $4.8 billion. Photos of the vessel started doing the rounds online and news outlets covered the topic extensively, but no one has ever seen the History Supreme in person…

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Korean Bamboo Salt – Making the World’s Most Expensive Salt Can Take up to 50 Days

Korean Bamboo Salt is a luxury product that can cost over $100 per 8.5-ounce (240g) jar. The price is mostly dictated by the laborious process of making it, which involves roasting it 9 times in bamboo cylinders.

If you thought pink Himalayan salt was expensive, you probably haven’t heard of actual luxury salt varieties. There are actually a bunch of them, including soy salt and pitch-black Kilauea Onyx salt, but at the very top of the list is Amethyst Bamboo, a Korean variety made by filling bamboo cylinders with sea salt, capping them with Loess clay and roasting it nine times in a traditional kiln. It’s a complex process that takes an entire month to complete. Every step is done by hand, so it’s no wonder that the salt can sell for over $100 per jar.

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Institut Le Rosey – The World’s Most Expensive School

Institut Le Rosey is generally considered to be the most expensive school in the world, with the annual tuition per student surpassing $130,000.

Switzerland is home to some of the world’s most expensive and exclusive schools. The European country is home to at least 10 schools with yearly tuition fees of over $75,000, but the most expensive of them all is Institut Le Rosey, an old and reputed boarding school with an ultra-impressive list of alumni. There’s a reason why Le Rosey is known as the “school of kings”. King Juan Carlos of Spain, King Fuad II of Egypt and King Albert II of Belgium were all students here, as were the Shah of Iran, the Aga Khan and Princess Marie-Chantal of Greece, among others. Having educated some of the best-known families in Europe for over a century, it’s no wonder Institut Le Rosey has an annual tuition fee of over $130,000 per student.

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This Company Builds Fantastic Playhouses That Can Cost Up to $400,000

Most people can only dream of spending hundreds of thousands of dollars on their dream home, but some are paying the same amounts, if not more, on intricate, fully-furnished playhouses for their kids.

Charmed Playhouses, a family business based in Letherbridge, Canada, claims to build the world’s most fantastic, luxurious and quality playhouses, and looking at some of their creation, we’re inclined to agree. But before you start dreaming about your very own backyard fantasy playhouse, you should know that some of these can cost an arm and a leg. Even though prices start at a respectable $3,500 for a basic playhouse, if you’re looking for something special, the bill can easily go into the tens of thousands, and even hundreds of thousands of dollars.

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This “Ridiculous Butter” Is Flavored with Lobster and Crab, Costs a Whopping $130

‘Ridiculous No.55 Lobster and Crab Butter’ is a decadent handmade butter made by a family company in the UK. It has been voted one of the world’s finest foods by a panel of 355 judges.

If you love food as much as I do, you probably know that there is nothing better than butter. But not all butter is created equal. For example, the ‘Ridiculous No.55 Lobster and Crab Butter’ made by UK-based family company Sublime Butter tastes nothing like the classic dairy product most of us pick up at the supermarket. Not only is it whisked to perfection out of the finest milk fats, but it is mixed in with bits of shellfish (lobster and Devon Crab), as well as caviar, fennel, and lemon to create a truly decadent spread.

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Kynam – The World’s Rarest, Most Expensive Wood

When you think of the rarest, most precious materials on Earth, things like diamonds, platinum, or gold probably pop into your head, but did you know that a special type of wood is actually more expensive than any of those?

Kynam, or “kyara” as it’s known in Japan, is an extremely rare type of agarwood used in the perfume and incense industries for its complex and very strong fragrance. It is the most sought-after type of “oud”, the name used in the Arab peninsula to describe the dark resinous wood produced in the heartwood of the aquilaria tree, in specific circumstances. A single gram of kynam can fetch well over $10,000, making it by far the most expensive wooden on the planet, and also one of the most expensive natural materials.

Essentially, kynam is the best kind of agarwood that money can buy, and it’s important that all types of agarwood are relatively expensive. Also known as aloeswood, eaglewood, or simply oud, agarwood has been an important part of Chinese, Japanese, Indian, Arab and Southeast-Asian cultures for thousands of years. It has always been a precious commodity, but demand for it has increased dramatically in recent years, and with it, the price.

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Would You Pay $21,500 to Run in the World’s First Premium Ultra Marathon?

Described as “the world’s first premium ultra,” the Highland Kings marathon requires participants to pay a £15,499 ($21,500) entrance fee. That makes it the most expensive ultramarathon on Earth.’

Ultramarathons aren’t usually associated with luxury, but Primal Adventure, an outdoor adventure business based in Scotland, is hoping to change that by organizing what many are calling the most expensive ultra marathon in history. The Highland Kings, a four-day camping race covering a distance of 120 miles on the west coast of Scotland, is limited to only 40 participants, each of whom will be required to pay an entrance fee of £15,499. The premium cost will give them access to luxury amenities like butlers, Michelin-star chefs, and hydrotherapy pools, among others.

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This Elite English College Trains the World’s Most Expensive Nannies

For over 120 years England’s Norland College has been known as the most prestigious nanny-training school in the world, with graduates landing jobs with wealthy families and earning upwards of $100,000 per year.

Founded in the late 1800s by Emily Ward, who realized that there was no official childcare training at the time, Norland College soon became the most renowned nanny-training school on Earth, with clients including Royal families and wealthy couples looking for the best service money could by. And indeed, Norland-trained nannies are nothing if not expensive, with some graduates earning as much as $170,000 per year, and even students raking in around 40,000 working during their elite training. That’s more than four times the average salary of a nanny in UK, but somewhat justified by the unique curriculum taught at Norland.

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This Sea Duck Has the World’s Most Expensive Feathers

Every summer, around 400 hunters scour a small, remote island in Iceland’s Breizafjörzur Bay in search of an unusual treasure – the world’s most expensive feathers

The hunt for the world’s most precious feathers has been held almost every year for over a millennia. People have known that Eiderdown, the feathers of the Eider polar duck, is one of the warmest natural fibers on the planet for a really long time, and nowadays they use it to make the best duvets and quilts money can buy. A kilogram of Eiderdown sells for thousands of dollars, as the feathers are only used to make luxury products. Eider ducks shed the precious down from their breast and uses to line their nests to insulate them during hatching. It’s these nests that the hunters are after during their annual Eiderdown hunt.

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Quintessential Grilled Cheese – The World’s Most Expensive Sandwich

Priced at an eye-watering $214, Quintessential Grilled Cheese has held the the record for the world’s most expensive commercially-available sandwich for over seven years.

You could say that New York-based restaurant Serendipity 3 is specialized in setting food-related Guinness records. It currently holds world records, most expensive desert, most expensive hamburger, most expensive hot dog, largest wedding cake and largest cup of hot chocolate. But the one we’re interested in today is the records for world’s most expensive sandwich, which happens to be a humble grilled cheese treat. Named Quintessential Grilled Cheese, the sandwich is deceptively simple, as it features some of the world’s most exclusive ingredients.

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The World’s Most Expensive Burger Costs a Whopping $6,000

The Golden Boy, a decadent delicacy made with 100 percent Wagyu A5, Beluga caviar, king crab, white truffle, among other premium ingredients, has just broken the record for world’s most expensive burger, with a price of 5,000 euros ($6,000).

The Golden Boy burger was created by Robbert Jan de Veen, owner of Dutch restaurant De Daltons, who came up with the idea while sitting in his restaurant pretending to get some work done. As he browsed the internet to pass the time, he stumbled over the previous record for the world’s most expensive burger, held by an Oregon restaurant that made a $5,000 burger that weight a whopping 352 kilograms, back in 2011. He found it cool, but decided he could make an even more expensive burger, and one that could actually be finished by one person.

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Bugatti Now Sells Self-Leveling Pool Tables for $300,000

Bugatti, a company known for its exclusive sport cars, recently unveiled a $300,000 luxury pool table that relies on highly advanced gyroscopic technology to remain perfectly level in any conditions, making it usable on yachts.

There are a few things in this world that money can’t buy, and until now, playing pool at sea was one of them. Try as they might, engineers could not design a table to negate the rocking of the boat and remain level. Until now, that is, because Bugatti apparently managed to create a self-leveling pool table that will allow the rich and powerful to enjoy a game of billiards on their expensive yachts.

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