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

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

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

Remnants of an exploded schooner and wrecked submarines form a breakwater.

An open-air museum in a mountain valley features works designed to blend in with—and disintegrate back into—their natural surroundings.

The bones of some 7,000 soldiers killed in the historic Battle of Solferino are stored here.

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

Venice's "Island of the Mad."

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

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

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

Climb inside an iron crystal magnified 165 billion times its normal size.

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

A stunning cemetery famous for its extraordinarily delicate & lifelike mourning sculptures.

This abandoned Brutalist treehouse is a hidden architectural relic.

A hospital where antique dolls are given new life.

David Sedaris called it "The greatest shop in the world."

World's largest cave was only discovered in 1991, and now offers tours to the public.

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

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This ghost town in Belgium will lose its street art when it ceases to exist.