A building so large that it has its own weather.

Historic medieval fortified city in southwest France.

This ancient theater was once the home of fierce gladiatorial battles.

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

The celebrated eyesore created by starry-eyed sweethearts.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

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

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

Outsider art meets paleontology at this roadside reptile repository.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

Electrical pylon in the shape of Disney's beloved mouse.

The world's largest private aircraft collection.

An octet of classic chrome trailers speared into the ground act as a tribute to the silver bullets of the open road.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Largest Roman Catholic church in North America.

Remnants of a storybook amusement park hidden behind a strip mall.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.