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If sea level rises by 10 feet, there will be chaos all over America—but the threat of such catastrophic flooding is already making things costlier for some unlucky homeowners.

Uncover 34 of the top World Heritage Sites across the globe. Dedicated to preservation and protection, find out why these historical and naturally beautiful places have earned a spot on the list of most important places on Earth.

Ancient Romans were masters of the mosaic. Luckily for us, many of these art pieces have survived and remain breathtakingly beautiful despite centuries of use and neglect. Here are the most dazzling Roman mosaics we've ever recovered.

The Giant’s Causeway has been capturing the imagination of humanity for thousands of years. It may also be proof that giants once walked among us.

Beneath Disneyland’s polished attractions and crowd-pleasing thrills lies a quiet architectural whisper: two staircases leading nowhere. They’re not mistakes. They’re the last clues of a ride that once floated above Fantasyland.

The Eye of the Sahara looks like it can’t possibly be natural, which is probably why some fringe archaeologists believe it is actually the lost city of Atlantis.