Rivers and lakes can be found beneath the ocean. When salt water and hydrogen sulphide combine, it becomes denser than the surrounding water, forming a lake or river that flows beneath the sea.

It's amazing how ancient some of Europe's structures and cities are. Pharmacies are no different. The Raeapteek on Town Hall Square, according to VisitTallinn, is one of Europe's oldest continually running pharmacies. This institution appears to have been in operation since 1422.

Where the Wild Things Are was originally titled Where the Wild Horses Are, and Maurice Sendak intended to write about horses; however, the author and illustrator quickly realised he was terrible at drawing horses and decided it would be better to draw 'things' instead; thus, one of the most memorable children's stories of all time was born.

In Korea, age is given precedence over all other considerations. When conversing with someone of a higher rank or age, formal language must be used. Similarly, when conversing with a junior/someone younger, you can use informal language (banmal, ). Unless two people agree to use banmal at the same time, this usually remains the case. Even in a k-pop group with members who are mostly around the same age, a few months difference in birthdate can make a big difference.

"The sediments underneath Earth's seas are home to roughly 2.9 x 1029 microorganisms, which survive at depths of up to 2.5 km below the seafloor." The bulk of this deep subseafloor biosphere develops incredibly slowly in comparison to life on the top, with cell division estimated to occur once every 10-1000 years or so. Scientists are discovering new microscopic life sources further and deeper beneath the ocean than ever before. In March, a team of scientists announced that they had discovered remnants of bacteria (about 10 billion bacterial cells) in rocks 400 feet below the bottom, which was the deepest ever discovered.

If you go to Moldova for a vacation, you won't have to compete for space with other tourists: just 121,000 foreigners are believed to have entered the nation in 2016 (according to the UN World Tourism Organization), making it the least visited country in Europe. According to Priceonomics, only Bangladesh and Guinea are less touristic places on a worldwide scale (in terms of tourists per inhabitant).

In the year 1,000 AD, half a millennium before Christopher Columbus "discovered" America, Greenlandic Viking chief Leif Eriksson arrived on the island of Newfoundland. Leif Eriksson's Vikings inhabited Newfoundland, as well as finding and populating Labrador further north in Canada.

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.

The world we "see" is a figment of our imagination. Our minds do not generate images in the same way that a video camera does. Instead, the brain builds a model of the world using data from modules that measure light and shade, edges, curvature, and so on. This allows the brain to easily paint out the blind spot, which is the area of your retina where the optic nerve connects and has no sensors. It also compensates for our eyes' rapid, jerky movements, known as saccades, creating the illusion of steady vision.

When you think about Greece, you probably see sandy beaches, turquoise seas, whitewashed houses, and blue domes. However, one of the most unexpected facts about Greece is that the bulk of the nation is really made up of mountains. It is one of the most mountainous nations in Europe, with mountains covering 80 percent of the land area. Remember to bring a decent pair of walking shoes!

A Formula 1 race car's engine is not like one found in a Toyota that can go 200,000 miles without breaking a sweat. A normal Formula 1 engine, according to F1Technical, can only endure seven races. The competitors set aside a considerable sum only for engine development. The tolerance and capability of F1 engines are unparalleled. They're designed to get the most out of them, even if that means just operating for a few hours. Because the engines are built with such accuracy, they are more prone to wear and tear.

McDonald's in Vokzalna Square in Kyiv is claimed to be the world's third most visited McDonald's restaurant. The restaurant is located just near to the train station. This restaurant will be extremely crowded. This is because McDonald's in Kyiv is now the greatest fast food alternative available.

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.

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.

King Idris I was the first and last ruler of Libya. Born into the Senussi order, he was both a political and religious leader. Before becoming King of Libya in 1951 with the end of colonial control, King Idris I served as the Emir of Cyrenaica. Because of his conservatism, the king's rule was unpopular. Colonel Gaddafi, who eventually replaced King Idris I, was toppled in a coup orchestrated by Colonel Gaddafi in 1969.

The largest padlock in the world (according to Guinness World Records) was created by a team of students and teachers at Russia's Pavlovo Arts College and measures 56.8 inches tall, 41.3 inches wide, and 10.2 inches deep. The total weight of this heavy lock, including the key, is 916 pounds. Whatever it's guarding presumably weighs a lot more!

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.

Sony built the cameras to record footage more effectively in low-light conditions. So their error was unintentional. Because they could record in infrared, the camcorders could see through clothing. During the day, though, you could see right through someone's outer layer of clothing! Sony sought to recall all of the cameras as soon as they recognised their blunder, making it their largest product recall to date.

During the Classical Period, Ancient Sparta was a colossally rich kingdom. Mostly because of their conquest and dominance over a nearby people known as the Helots. When a Spartan boy attained maturity and became a man, the Spartan state bestowed upon him a grant of public farmland. They also sent him a contingent of Helot slaves to work it. This effectively transformed every Spartan citizen into a rich member of the traditional upper class. As a result, they did not have to work for a living. Private property still existed, which is significant because...

The origins of this strange-sounding celebration may be traced back hundreds of years, beginning in the early 1900s. People did not have refrigerators in the 1900s, so they hung a piece of cloth in their larders. It is thought that doing so provided the home good fortune, tranquilly, and wealth. The tradition evolved to accommodate the contemporary kitchen throughout time. Every year on May 29th, families throughout the world place a pillow on top of their refrigerator.

Kites were first seen in America in the mid-1700s, according to history. Benjamin Franklin, one of America's founding fathers, famously flew a kite during a thunderstorm in 1752 to demonstrate an experiment about electricity and nature. This is the first documented kite flight in American history, and Franklin demonstrated that lightning carries electricity. He would later invent the lightning rod as a result of this experiment. What a fascinating fact about kites—it aided one of the world's best inventors in making a fascinating discovery.

Cocoa beans contain pathogens that are potentially harmful to humans, and raw cocoa beans do not taste like chocolate. When cocoa beans are roasted, they go through a chemical process, and proper roasting is essential for producing flavorful chocolates.

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 is frequently debated among professionals which era is regarded as the "best" in modern game history. Chess, like modern sports, has gone through several eras in which the perspective of how the players competed changed. For example, in chess, the Romantical approach favoured quick tactical moves over long-term strategy. When players changed their playing styles, valuing one thing over another, new "ages" of chess would emerge.