Off the coast of Fort Lauderdale, Florida, divers can find what might be the most uniquely horrifying environmental experiments we’ve ever created. The Osborne Reef was constructed in the 1970s and was made to be an artificial reef for nearby marine life to grow on. Scientists at the time thought that it was a good idea to try and copy the beneficial aspects of coral reefs by trying to recreate one with hundreds of thousands of old tires.