Places meltingknight Wants to Go

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

This 15th-century fortification was built to defend bunnies.

A museum in the former home of Marxist revolutionary Leon Trotsky.

Frida Kahlo's childhood home, now a museum of her life and works.

The Mexican painter Diego Rivera created this unusual museum to display his collection of pre-Hispanic artifacts.

A measuring mishap led to these artificial stone ladies losing their stomachs.

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

Home of Philip Johnson, one of the 20th century's most influential architects.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

Public access to clean drinking water was an instant hit among the masses.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

A quiet memorial to those who died saving others in the heart of the City of London.

A mysterious carving from 17th-century London seemingly depicts a young boy sitting on a bread basket.

A historic and oft-filmed prison stands in a Chicago suburb.

Disused penal colony features prisoner artwork, some sketched in human blood.

A perfectly preserved abandoned criminal asylum in South Australia.

This Bronze Age tomb is the centerpiece of a clearing within a beautiful Irish forest.

Dictionary Johnson’s favorite feline.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

A huge collection of rocks, gems, and crystals.

The home of the Dead Sea Scrolls is an abstract modernist dream.

A more chill but no less fascinating version of the famous ancient archeological site.