A colossal sculptural lion built by the same man who designed the Statue of Liberty.

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.

If they push on just the right spot, even the weakest person can move this titanic boulder.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

This stunning natural double arch, the largest in the Alps, went undiscovered until 2005.

Two small chapels housed inside an ancient tree.

Ancient paintings known as the "Sistine Chapel of Cave Art."

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Abandoned railway line circling the city of Paris.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A forsaken wonder in the middle of the East Side neighborhood.

The absurd creation is a compulsory destination for selfies in Buffalo.

Hunt for buried treasure in Nova Scotia.

Cliffs that hold fossils, including the earliest known reptile, dating back more than 300 million years.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

This natural sea cave hides a small wonderland of natural turquoise beauty.

A particularly disconcerting tribute to Irish martyrs.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.