One of the oldest seagoing boats in the world can be found at the Dover Museum.

Pause in an abandoned hydroelectric station, now overrun with wildlife, to consider a thought-provoking poem.

The most important and best preserved remnant of West Africa's powerful Songhai Empire.

The world’s highest ski resort was deserted after an 18,000-year-old glacier melted away.

Legends of treasure and spirits flow from this this fairy tale-like oasis.

This tower pays homage to a legendary Viking fort established in Massachusetts that never really existed.

A creepy statue of a hooded ghost hauls itself up from the water in a historic Lithuanian city.

This museum sits on the site of a decommissioned military communications base.

This isolated airport in the middle of the Everglades sees more alligators than planes.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

In Spain, the ruins of a Roman military camp sit along a flooded section of a river.

For centuries, this large Roman villa remained hidden thanks to the eruption that buried nearby Pompeii and Herculaneum.

Mysterious heaps of stones dot these otherworldly woods.

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

These quaint cottages feature built-in signaling devices for fishermen.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

A striking glass tribute to two sisters who suffered during Scotland's "Killing Time."

An ancient Incan convent on Lake Titicaca's Island of the Moon.

Come for the boats, stay to explore the intriguing assortment of art.

This ancient Roman arch misled treasure hunters for centuries.

This deceptively salty lake looks like blushing pink lemonade.

This enchanting mountain plateau celebrates spooky local folklore.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.