The Earth is 70% water, most of which is still an unexplored wonderland of lost cities, buried treasures, and possibly some kind of unstoppable Osama-Megatron-hybrid-superbeast... Praying not to find the latter, we've taken a deep dive into the web and put together 20 of its most jaw-dropping sub-ocean sights. Feast your eyes:
4. The lost Egyptian cities of Alexandria, Herakleion and Canopus are believed to have sunken over 1,500 years ago from earthquakes casting them and their many artifacts, relics, and treasures into the sea.
5. Try not to break anything as you drift through the Continental Trench in Silfra, Iceland. It's between the North American and Eurasian tectonic plates, meaning if something happens, it's not your fault.
7. The Blue Hole, an underwater sinkhole in Dahab, Egypt, is also known as "The World's Most Dangerous Diving Site" and "Diver's Cemetery" due to its notorious number of diving fatalities. Who's ready for a swim?!
11. The world's first underwater sculpture gallery is Grenada's Underwater Sculpture Park, which features pieces bolted to a substrate 22ft deep, like this series of life-size faces molded into a coral boulder.
15. Once known as "The Wickedest City on Earth" because of its coma-inducing rum, rampant piracy, and prostitution, Port Royal in Kingston, Jamaica sank after an earthquake that was said to have punished the wild town in 1692.
18. After the 2004 tsunami struck the Indian Ocean, tourists and residents near Mahabalipuram witnessed the uncovering of relics that can be traced back to the 7th century as well as this temple, which is considered to be one of the "Seven Pagodas" from Hindu lore.