Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

A condom-covered Thai restaurant that is more concerned with birth control than food.

The world's largest impact crater is mainly eroded but still remembers the planet's violent history.

Home to some of the oldest hominid fossils ever found.

A safari-themed castle in the South African bush with the largest maze in the southern hemisphere.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Resting place of Hollywood's immortals is also site of summer film screenings.

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

World's largest collection of serial killer artwork and other macabre exhibits.

It looks like a whale, it's part of Yale, and it's best-known by a nickname you can probably work out for yourself.

Connecticut's shot tower is near the end of its life.

An extra-wide chair built to accommodate the former president's big behind.

Underground tunnels remain beneath this abandoned mental asylum.

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

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

An incarceration museum on the spot of possibly the oldest prison in England.

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

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Giant, friendly pelicans in Central London, the most unlikely of places.

London's smallest police station is barely the size of a phone booth.