Not only do great wonders exist on the ground, there are also some bizarre and magnificent things to be discovered underwater. They will blow your mind.
An aquatic Stonehenge was found lying twelve meters deep in the middle of Lake Michigan. It is believed to be more than 10,000 years old, though no one knows for sure what it really means.
This Antikythera mechanism was discovered probably in 1901 and is believed to be an ancient Greek analog computer designed to predict astronomical positions and eclipses for calendrical and astrological purposes.
The ancient Chinese city, Shi Cheng city, was built during the Eastern Han Dynasty (AD 25-200) and still remains submerged 85-131 feet deep down Qiandao Lake of China.
An engine used in Apollo 11 takeoff was found forty-four years after the legendary flight in the Atlantic Ocean with the financial help of Amazon CEO Jeff Bezos.
It took the famous archaeologist Frank Goddio 5 years to find the lost city of Heracleion, whose existence will tell us something about its past glory.
The Queen Anne's Revenge was most famous as a flagship of Blackbeard the pirate. Abandoned in 1718 after running aground at Beaufort Inlet, the pirate ship wasn't discovered until 1966, with big guns and cannons still intact.
Don't be surprised if you find spiders underwater because they have air pockets on their webs that give them breathable air to protect them.
Brave divers can enjoy an eye feast of 500 lifelike sculptures off the coast of Cancun.
Two steam locomotives from the 1850s were discovered 90 feet deep the coast of New Jersey in 1985.
This underwater river Cenote Angelita (Spanish for "Little Angel") located in Mexico's Yucatan Peninsula is the result of a salt water and fresh water mixture.
The British cargo ship SS Gairsoppa, carrying about 240 tons silver, sank in 1941 when torpedoed by Nazis. It was not discovered until in the summer of 2012, with only 61 tons found at the site in the Atlantic Ocean.
The Yonaguni Monument is said to be man-made stepped monoliths which stand off the coast of Yonaguni and are believed to be 5,000 years old.
There are sinkholes not only on the ground but also on the ocean floor. Sea level changes, water, chemicals, time and just a few of the reasons why an underwater sinkhole is formed.
F4U Corsair is a carrier-based fighter-bomber which served in World War II and the Korean War. This picture of the pilot of the F4U Corsair dates back to 1946 when the lack of fuel on a routine training run forced it to plunge into the water.
The Ghost Fleet is a World War II graveyard of segments from almost 40 bombed vehicles near Chuuk Lagoon during World War II.
Built in Burlington, Ontario in 1867, the Canadian schooner was dragged to Big Tub Harbour after its damage off Cove Island and then sank into the water in 1885.
In the picture iyou can see the Lady Elizabethan porcelain statue from the SS President Coolidge, which was sunk by mines in Espiritu Santo.
In 2012, the oldest living organisms on the planet were discovered in deep sea water. Microbes from the Jurassic era were found that hadn't eaten a thing for 86 million years.
Manganese Balls are spread all over the world, but mainly in the Pacific.
Built in 1940 by Joseph Thompson & Son in Sunderland, the British armed Merchant Navy ship SS Thistlegorm was sunk on her fourth voyage from Glasgow to Alexandria, Egypt. Cargos contained on the ship ranged from motorcycles, guns, ammunition, to radio equipment, railway wagons, etc. Now it is a famous diving site.