You loved our first installment of the world's most mysterious places, so we went back out to dig up more. From ocean floors to crystaline caves, here are 10 more places that will make you want to buy a ticket, pack your bag and see the world.
Maunsell Army Forts, Kent, England
These still-standing remnants of World War II are just off the coast of Kent, England. Now abandoned, they can be seen from land on a clear day, but you'll need a boat to get a good look. In the 1960s and '70s, they . . .