A clone of a cloned tree that was so important it allegedly had its own guards.

Version of the French Riviera destroyed by the sea.

An off-grid art installation that encourages its visitors to imagine a world without waste.

This charmingly homemade amusement park has been growing for 40 years.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Famously misunderstood wonder of the ancient world

A church of bones, decorated with 40,000 human skeletons.

Home to a vast and influential collection of Shakespeareana.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

The national park was once a plantation estate.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

Home to items never before seen by the public.

The second oldest continuously operating bar in Louisiana.

A museum and shop on Bourbon Street located in the French Quarter.

A snapshot of the city's fascinating voodoo culture.

An incredible menagerie of more than 3 million taxidermied animals at the oldest science museum in Europe.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

The hallucinogenic center of the ancient world.

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

Watch the newest land on the planet form before your eyes.