This floating cinema brings new meaning to the phrase "going out" to the movies.

The world's largest collection of intentionally useless inventions.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

Peek through a transparent pyramid and drink in the mountain made of books.

The largest cave shaft in the world is home to thousands of birds and popular with BASE jumpers.

A collection of collections ranging from dentistry to minerals.

This witch statue remembers a time in England's history when fear trumped truth.

An idyllic hotel that gave its name to a supposed shadow government.

A preserved building where the dead were once watched for signs of life.

This disused VLF radio station is no longer in service but the surrounding town still bears its name.

Ancient pueblos built into the base of a natural canyon wall.

This small museum collects the Christian remembrances which would otherwise be forgotten.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

A small but industrious mining operation that allows visitors to touch precious gems while they are still in the rock.

A modern sliver of architecture in Roma.

A lighthouse on a diminutive island was one of the first of its kind to guide seamen home.

A city continually buried under the ash of a volcano that has been erupting for more than 15 years.

Survival capsules find a second life as a unique hotel.

A 300-ship graveyard, with a few still visible at low tide.

A psychological self-portrait in the form of a giant, segmented head.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

In a long-dry lake bed, these groups of massive stone pillars bear a striking resemblance to clumps of everyone's favorite fungi.

Eighteen miniature death-scene dioramas.

A beautiful maze marks where three countries meet.