This South London cemetery holds the remains of more than 15,000 people.

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.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

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

The largest mosque in Cambodia was built to unite the country's Muslim community but soon sparked division and controversy instead.

Bombed and burned, this monument represents the often controversial ties between Vietnam and Cambodia.

The capital of Cambodia is named after the hill on which this ancient temple complex stands.

Khmer Rouge's high security prison.

One of the biggest markets in Asia, under one of the continent's largest domes.

5,000 skulls in memorial to those killed by the Khmer Rouge.

The graveyard with the highest IQ in Britain.

A complicated contraption for telling time by the moon.

An extraordinary library and archive dedicated to the history of the Arctic and Antarctic poles.

A treasure trove of astronomical, mathematical, and scientific instruments at Cambridge University.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

The only arched bridge made of stone on the entire Mississippi River.

An architecturally-focused antique shop.

This otherworldly church spire reaches up toward the heavens.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

An abandoned concrete jungle surrounded by a lush park.

This abandoned prison castle has become an imposing gallery of graffiti art.