Under the sea, there are more historic artefacts than in all of the world's museums combined. There are approximately 1,000 shipwrecks off the Florida Keys alone, some of which are protected by the Florida Keys National Marine Sanctuary. Other underwater museums have opened in recent years, including Christ of the Abyss, a submerged bronze statue in the Mediterranean.

Something frowned upon in most other nations is quite acceptable in China. In China, spitting, yawning, grunting, and burping is normal eating behaviours, just as they are in Vietnam. It was repulsive to us, and we couldn't get used to it. We would bear it better if we stayed in this nation for a little longer.

The tides are caused by the tiny changes in gravitational pulls of the Moon and Sun, as well as centrifugal forces in opposing directions. The tides on Earth are at their greatest when the three bodies are aligned, which occurs near the full and new Moons. The Earth is then expanded along that line.

It goes without saying that the ancient Babylonians were excellent mathematicians. They understood the Pythagorean theorem, for example, nearly 4,000 years ago, or more than a millennium before Pythagoras himself was born. Their mathematical prowess naturally extended to astronomy, where they routinely used arithmetic to catalogue celestial body movements and improve their astronomical predictions.

It wasn't Henry Ford's Model T back in 1908. The first vehicle was built in the nineteenth century by European engineers Karl Benz and Emile Levassor who were working on automobile ideas. In 1886, Benz patented the first vehicle.

While Assassin's Creed is already a household brand, it almost became something quite different. The original crusade-era period game was inspired by a Prince of Persia game called Prince of Persia: Assassin, which had a prince's bodyguard as the protagonist. Unhappy with the thought of a Prince of Persia game not being about a prince (which, interestingly, Nintendo doesn't see as an issue with when it comes to Zelda), Ubisoft's upper brass insisted on a new brand, and Assassin's Creed was created.

Alaska, the biggest state in the United States, was sold for a total of $7.2 million, or roughly 2 cents per acre. In 1867, the state was bought. America made its $7.2 million investment back more than 100 times over in the 50 years that followed. Talk about a good investment.

Egypt's ancient pyramids were built during an 85-year period, between 2589 and 2504 BC. The Sagrada Familia, Antoni Gaudi's masterwork, began building in 1882 and has continued under development ever since. Gaudi was never able to see his masterpiece completed. After 144 years of development, Barcelona hopes to have it finished by 2026, the 100th anniversary of Gaudi's death.

Hüseyin Kalkan, the mayor of Batman (a town in southern Turkey), sought to sue Warner Bros. and Christopher Nolan in 2008 for exploiting the town's name without authorization. Despite saying that there was only one Batman in the world, there was no true news about it after that. Batman originally debuted in a comic book in 1939. The issue is, which came first, the chicken or the egg? Which came first, the chicken or the egg?

In 2012, when Boeing wanted to test its wireless signal on new planes, they placed massive piles of potatoes on the seats. Potatoes absorb and reflect radio and wireless signals in the same way that humans do due to their high water content and chemical makeup.

In Greek mythology, Zeus had a passionate love affair with Europa, a Phoenician princess. To entice her away, he disguised himself as a bull and carried her off to sea on his back, transporting her to the island of Crete. The famous 1747 painting "The Rape of Phoenicia" by Francois Boucher sits at Paris' Louvre.

What could be better than dedicating one day of the year to yourself? Having two of them! Many Greek names are derived from religious saints, each of whom is commemorated by the church on a particular day. People with the same name as the saint are wished a happy name day on that day, and a party is thrown with family, friends, and even neighbours. Marios and Marias, for example, have two name days each year!

In the United Arab Emirates, the week begins on a Sunday! Sunday in the UAE is just like any other day, with children going to school and adults going to work. Weekends are Friday and Saturday for them. Because Friday is a special religious day in Islam for afternoon prayers, many Middle Eastern countries follow this timetable.

Hot chocolate was not something we were served in restaurants these days. Cocoa was brewed in both Aztec and Mexican cultures, but it was nothing like the hot chocolate we have today. It was primarily a bitter concoction that was frequently consumed at weddings and other special occasions. Many people used it as a medicine or as a base for other medications.

Some of these European facts are more recent than others. Kosovo gained independence from Serbia on February 17, 2008, becoming Europe's youngest country. Kosovo, a landlocked nation in the European Balkans, with a population of almost 2 million people.

Christian Dior technically invented designer sunglasses when, in the early 1960s, they licenced their brand to be used to produce luxury sunglasses for discerning fashionistas. Using Optyl, his own lightweight thermo-hardening material, he converted expensive sunglasses into more wearable everyday items. The properties of this material also allowed for a wider choice of models, from broad and original lines to previously discovered hues and delicate degradé of translucent, brown, green, and grey colours that still mark Dior's beautiful and refined style.

Yes, indeed! You may walk by foot between the United States and Russia during certain times of the year, owing to two islands known as Big and Little Diomede. Big Diomede is located in the Russian Federation's easternmost region, whereas Little Diomede is located in Alaskan territory. When the water freezes in the winter, daring visitors can cross the 2.4-mile distance between the two islands. However, you do it at your own peril; while experts believe the voyage is technically feasible, it is risky and not encouraged.

Ecologists estimate that treating one ton of ore yields 1–2 grams of gold. The same quantity of precious metal may be obtained by processing all gold-bearing components from 41 mobile phones. A tonne of electronics includes almost 300 grams of gold. However, the cost of the devices is prohibitively expensive for this gold-mining method to be profitable.

During the feudal period, rich Japanese lords constructed residences with purposefully squeaky flooring (known as Nightingale Floors) to deter ninjas. The fabled, highly trained mercenaries of mediaeval Japan were so entrenched in myth and tradition that they were thought to be capable of walking on water, becoming invisible, and controlling natural forces. That has to be enough reason to lay down some new flooring.

Most people are unaware of how biodiverse Papua New Guinea is; the magnificent wildlife underwater has made it one of the world's best scuba diving destinations. Despite having only 1% of the Earth's total surface area, Papua New Guinea includes 20,000 plant species, 800 coral species, and over 650 fish species. Do you have your PADI scuba diving certification? If you don't have one, you should obtain one before going to Papua New Guinea to make the most of this unique underwater world.

A local winery erected a fountain in the northern Italian town of Caldari di Ortona that splashes red wine instead of water 24 hours a day. The fountain is intended for pilgrims walking the Cammino di San Tommaso, a 196-mile journey from Rome to Ortona in the footsteps of St. Thomas the Apostle. Wine is a pleasant way to celebrate after such a long hike.

Alexander the Great died at the age of 32, having conquered and established the world's biggest land-based empire. It spanned the Balkans to Pakistan. Alexander became sick in 323 BC and appeared to die after 12 days of intense torment. His corpse, on the other hand, showed no indications of decay or decomposition for a whole six days. Alexander was thought to have suffered from the neurological illness Guillain-Barré Syndrome, according to modern experts. They believe he was just paralysed and intellectually aware when he "died." In other words, he was horrifyingly buried alive!

In the 1990s, Korean pop musicians incorporated American popular music styles. Seo Taiji and Boys were the forerunners of this style, releasing the infamous single "I know" in 1992. It was so controversial that most critics despised their music and predicted that they would never make it. Nonetheless, the group quickly became enormously popular. Yang Hyun Suk of YG Entertainment was a member of the group, which is regarded as part of K-revolutionary Pop's period.

With its enormous size and mass, you'd think Jupiter would rotate slowly around its axis. With a rotational velocity of 45,300 km/h, it is the fastest spinning planet in the solar system. As a result, a day on Jupiter lasts only 9 hours and 55 minutes. A year, on the other hand, is much longer; Jupiter orbits the sun once every 11.8 Earth years.