From research labs to Egyptian cities: Most bizarre things BUILT underwater places THE OCEAN floor is home to many hidden treasures and unsolved mysteries. Share: Email ThisBlogThis!Share to XShare to Facebook Related Posts:Travel CHAOS at Heathrow: 10,000 travellers hit as airport cancels 100 flightsDoes THIS airline have the most beautiful air hostesses?Does THIS airline have the most beautiful air hostesses?Travel CHAOS at Heathrow: 10,000 travellers hit as airport cancels 100 flightsREVEALED: How powerful is YOUR passport? These EU citizens can access the most countries