The Caspian Sea, also referred to as the world's "biggest lake," is home to one of the most unusual oil rigs ever seen ... the sea," stretching out "like an octopus." Neft Dalar has produced ...

Seaventures Dive Rig, a decommissioned oil rig in Malaysia, is now an epic destination for divers. The five-star scuba diving school and resort offers dozens of different courses, and sits in the ...