When two rivers meet but do not mix in Georgia

Mysterious spherical stones ranging in size from a few millimeters to several meters have been discovered in Crimea, United States, Russia, and New Zealand. There are many theories from various geologists, but none of them are clear.

Nature is elusive and unpredictable, and the unexplained manifestations of its influence often leave us speechless. Though you might believe that shifting rocks and blood-colored rain are a prank or a magical phenomenon, science has an explanation for (almost) anything.

Uruguay’s Laguna Garzon Bridge splits into a circle so drivers can slow down and enjoy the view. It also prevents head-on collisions and creates a walkway for pedestrians.

The unbelievable "Hanging Stone" of Siberia weighs around 300 tons and has been hanging off a 1,000-meter cliff since the Ice Age.

There is a place in Austria called Grüner See which is a dry park in winter and turns into a 12-meter-deep lake in summer.

The city of Glasgow spends approximately £10,000 every year to remove traffic cones from the head of the Duke of Wellington statue. The Duke of Wellington statue, which first appeared in the early 1980s, has worn an orange traffic cone hat for decades. but how did it get there - and more importantly how did it stay?

When space meteorites hurtle towards Earth, they frequently burn up in the atmosphere before reaching us. Those that burn up become meteors - or shooting stars.

The remote tomb of Qasr al-Farid, situated in the Saudi Arabian desert, dates back to the 1st Century CE. It was built by the Nabataean people, who also built Petra in Jordan. This site has remained largely undisturbed.

Lake Hillier in Australia maintains a bright pink hue all year round. Although no one knows for sure what causes the unique coloring, experts speculate that it might be the result of high salinity, a pink bacteria called “halobacteria,” and a salt-loving algae species called Dunaliella salina.

In the Peak District Forest of the Scottish Highlands in the UK, there is a unique tree which is laden with only money. This tree laden with money has been studded with British coins for 1700 years, there is no corner of its trunk where a British coin is not stuck.

The Bajau are a group of people that practice extreme free diving, submerging for up to 13 minutes at depths of about 200 feet. These ‘sea nomads’ dive to catch fish or look for natural materials that can be used in crafts in the waters that surround the Philippines, Malaysia, and Indonesia.

In Poland, there is a forest with 400 crooked trees that have a 90-degree bend at the base of their trunks. Despite of numerous possibilities, the real reason and how it evolved remain a mystery.

The ancient city of Jericho is the world's oldest walled city, with evidence of stone fortifications dating back nearly 9000 years.

For over a century, Canada’s second-largest power company has been disguising its electrical substations in Toronto as beautiful houses that blend perfectly with the neighborhood. These fake houses contain transformers that supply electricity throughout the city.

For many years, people have been attracted to these spectacular-looking boulders because of their shape, components, location, or picturesque surroundings. Many of them are massive, and seeing them is an amazing experience.

Scientists have been puzzled by the Al Naslaa rock formation in Saudi Arabia for a long time, and there is still no explanation for why this boulder appears to have a precise incision across the middle of it.

The dissemination of spores of microalgae has been identified as the origin of the 'Blood Rain' phenomena, according to a new study by Indian and Austrian experts. Since 1896, reports of intermittent red-colored rain in portions of Kerala and Sri Lanka have been coming in. The most recent one occurred in 2013 over Kerala.

In 1859, wealthy settler Thomas Austin released 13 wild rabbits on his Australian estate. By 1920, their population grew to 10 billion.

At 10,582 square kilometers (4,086 sq mi), the Salar de Uyuni (or Salar de Tunupa) is the largest salt flat in the world. It is located in the Potosi and Oruro departments in southwest Bolivia, near the crest of the Andes, and is elevated 3,656 meters (11,995 ft) above the mean sea level.

In the 1830s, Sweden planted 300,000 oak trees for the purpose of building naval ships. However, by the time the trees matured, metal warships had replaced the need for wooden ones. The forest still stands to this day.

Not only do borders define us, but they also determine who we are. Simple lines on the ground, either man-made or geological, distinguish one culture from the next.

The “Grana Double Tree” in Piedmont, Italy is a highly unusual tree, which consists of a cherry tree growing atop a mulberry tree. It is essentially a two-species, two-tiered hybrid duplex.

Learn the stories behind seven of the world's most renowned abandoned cities and villages, from the infamous Chernobyl nuclear catastrophe zone to Hashima Island.

Although global warming is a serious threat to the entire planet, some geographical regions are more vulnerable to its effects.

According to news sources, the top of Darwin's Arch, a famous natural stone archway in the northern Galapagos Islands, has collapsed into the waves.