World's Only Functional Underwater Postbox for Ocean Mail

World's Only Functional Underwater Postbox for Ocean Mail

There is a fully functional post box located under water in Susami Bay, Japan.

Ancient Egypt's Fascinating and Unusual Uses for Lettuce

Ancient Egypt's Fascinating and Unusual Uses for Lettuce

In ancient Egypt, lettuce was not primarily eaten as a food but was instead regarded as an aphrodisiac and symbol of male fertility.

The Enigmatic Currency of Yap: The Ancient Stone Money

The Enigmatic Currency of Yap: The Ancient Stone Money

Rai stones (also known as Yap stones) were used as a form of currency in the island of Yap in Micronesia and they are the world's largest coins.

Tracing the Birth of Potato Chips: a Culinary History

Tracing the Birth of Potato Chips: a Culinary History

Potato chips, the popular snack item, were actually created out of spite by a chef in the year 1853.

The Rise of Kodokushi: Japan's Growing Loneliness Crisis

The Rise of Kodokushi: Japan's Growing Loneliness Crisis

Kodokushi is a term in Japan for 'lonely death'. It refers to the increasing phenomenon of elderly people dying alone and undiscovered for a long period, especially in densely populated areas.

Napoleon’s Unlikely Foe: The Rabbit Incident of 1807

Napoleon’s Unlikely Foe: The Rabbit Incident of 1807

In 1807, Napoleon Bonaparte was attacked by a horde of bunnies.

Mystery of Gravity Hills: The Optical Illusion Explained

Mystery of Gravity Hills: The Optical Illusion Explained

An optical illusion where a car appears to roll uphill against gravity on a slightly slope road, known as 'gravity hill'.

The Iconic Owl at Bohemian Grove: Mysteries and Symbolism

The Iconic Owl at Bohemian Grove: Mysteries and Symbolism

Bohemian Grove, an exclusive men's club used by American elites, features a 40-foot owl as its central symbol.

The True Chemical Composition Behind Pencil 'Lead' Explained

The True Chemical Composition Behind Pencil 'Lead' Explained

Contrary to what its name implies, a pencil 'lead' contains no lead at all. In fact, it is made from graphite.

Ancient Popcorn: a Historical Snack from Early Civilizations

Ancient Popcorn: a Historical Snack from Early Civilizations

Popcorn was consumed by ancient civilizations, even before pottery was invented.

The Revolutionary Medical Breakthrough of Medicinal Mould

The Revolutionary Medical Breakthrough of Medicinal Mould

Despite common beliefs, the discovery of Penicillin by Alexander Fleming in 1928 was quite unsystematic and majorly a product of unanticipated circumstances.

The Hidden Delicacy of Italy: Exploring Casu Marzu Cheese

The Hidden Delicacy of Italy: Exploring Casu Marzu Cheese

Casu Marzu is a type of cheese from Sardinia, Italy known for being infested with live insect larvae, usually made from sheep milk.

Colorful Celebrations: Oaxaca's Annual Radish Festival

Colorful Celebrations: Oaxaca's Annual Radish Festival

In Oaxaca, Mexico, there is an annual event known as 'La Noche de Los Rabanos', or 'Night of the Radishes'. It features elaborate scenes carved from radishes.

The Solitary Sentinel: The Iconic Tree of Ténéré Desert

The Solitary Sentinel: The Iconic Tree of Ténéré Desert

Once considered the most isolated tree on Earth, the Tree of Ténéré stood alone for decades in the heart of the Sahara Desert.

Anesthetic Discovery Made During a Celebration Event

Anesthetic Discovery Made During a Celebration Event

A medical doctor in the 19th century discovered the anesthetic properties of nitrous oxide, quite accidentally during a party.

The Bridge of Scale: an Architectural Marvel Spanning Ages

The Bridge of Scale: an Architectural Marvel Spanning Ages

A scale that was accidentally invented to measure the local gravitation in a place using a bridge.

The Fascinating Story of Tycho Brahe's Iconic Silver Nose

The Fascinating Story of Tycho Brahe's Iconic Silver Nose

16th-century astronomer Tycho Brahe wore a prosthetic silver nose after losing part of his real one in a duel.

Unveiling the Unexpected History of the Modern Treadmill

Unveiling the Unexpected History of the Modern Treadmill

Far from its present use for fitness, treadmills were initially used as punishment in prisons during the 19th century.

Unveiling the Origins of the Accurate Heart Symbol Mystery

Unveiling the Origins of the Accurate Heart Symbol Mystery

Despite our hearts’ anatomical differences from the symbolic heart drawings we use, scientists have found a plant that accurately resembles a heart diagram.

Discover the Hidden Private Apartment in the Eiffel Tower

Discover the Hidden Private Apartment in the Eiffel Tower

Gustave Eiffel had a private apartment on the top of the famous tower he engineered and built in Paris.

Unveiling the Astonishing Origins of the Color Purple

Unveiling the Astonishing Origins of the Color Purple

Purple dye was accidentally discovered by ancient Phoenicians.

Project Iceworm: The Secret Cold War City Under the Ice

Project Iceworm: The Secret Cold War City Under the Ice

During the Cold War, the United States secretly built and operated a city underneath Greenland's ice cap to house nuclear missiles. The plan was known as 'Project Iceworm'.

Timeless Blaze: The Story of an Unceasing Coal Inferno

Timeless Blaze: The Story of an Unceasing Coal Inferno

Beneath Centralia, Pennsylvania, a coal fire has been burning for over 50 years and is expected to burn for many more.

The Fascinating World of Whistled Communication Techniques

The Fascinating World of Whistled Communication Techniques

Some communities around the world use whistling to communicate complex messages over long distances.