This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

The world's brightest bioluminescent bay.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Olfactory delights in San Francisco's Botanical Gardens.

The ghost town that ended up on Ebay.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

One part antique store, one part curiosities hodge-podge.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

Roman ruins top white travertine terraces formed by ancient hot springs.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A speakeasy takes on Chicago's drinking culture.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

This attraction was abandoned after the Chernobyl disaster.

This massive library holds what was once the largest book collection in the world.

The remains of diamond fever taken over by the desert.

Where beautiful signs live on forever.