The Titanic is about as long as the Empire State building is tall.
174
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
Two dogs were among the Titanic survivors.
262
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
The Caspian Sea is also classed as the world's largest lake.
52
Sharks, like other fish, have their reproductive organs in their chests.
248
Water is actually naturally blue.
48