#1. Rolling in the deep.
In 1985, steam locomotives from the 1850's were found at the bottom of the ocean. Somebody must have forgotten to hit the brakes.
#2. Sculptures
There is a sculpture park off the coast of Cancun, Mexico. It can only be seen by those willing to plunge into the Caribbean Sea.It has over 500 statues!
#3. Itsy Bitsy
Spiders. Yes. Some species create air pockets on their webs, so they can breathe underwater.
#4. Apollo 11
An Apollo 11 engine was recently uncovered in the Atlantic Ocean after Amazon CEO Jeff Bezos financed a team to search for it.