A miniature rainforest is growing inside of a Midtown Manhattan office building.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A hand-built folk art installation covered with messages of God's love.

A giant Troll lurks under one of Seattle's oldest bridges.

The only theatre in the world constructed specifically for sound movement.

Famously misunderstood wonder of the ancient world

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

The United States Capitol's former columns still stand.

An Australian lake whose pink hue defies scientific explanation.

Medical and zoological curiosities for sale.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

America's most famous piece of self-built architecture.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

Staves, storm-calling, and of course, necropants.

The world's largest collection of witchcraft regalia.

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

A layered tribute to the work of mosaicist Isaiah Zagar.

Abandoned railway line circling the city of Paris.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.