One of the longest overwater roads in the world, Florida's Overseas Highway stretches from Miami on the mainland to Key West, the furthest of the islands. Completed in 1938, many sections of the highway were built over the route of the Florida East Coast Railway, which was irrevocably damaged in a hurricane. It's 113 miles long and has 42 bridges, including the famous Seven Mile Bridge. The route offers drivers magnificent views of the Keys and the Florida Straits.

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The world's most amazing roads as you've never seen them before