Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

A display of magnificent stained glass windows is the first exhibit of its kind.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

The third tallest lighthouse in America once guided author Stephen Crane to safety.

The record holder for the world’s largest peach.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

The maritime museum that boasts the largest nautical library in the western hemisphere.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

Oldest unrestored plantation house in America that is open to the public.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.

A hugely vast Irish landscape of barren rock that stretches for miles.

Belly up to the bar in Cowtown, don't forget to buy some boots.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

This historic train station has been converted to a locomotive themed hotel.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.