A movable feast that is an East London institution.

The largest of London's subterranean rivers and once a mad, bad center of London life.

Hidden beneath the streets of London is a secret subway that only carried mail.

Snow-capped peaks, colorful waterfalls and stunning vistas on the edge of the Himalayas.

999 stairs lead visitors through a massive hole in a mountain known as the Gateway to Heaven.

A fifth-century temple improbably built into the side of a cliff.

Beijing's World Park offers the excitement of international sites without the travel.

An collection of Chinese propaganda posters from 1949 to 1979.

Rivers of cattle blood gone, a strange Escheresque building remains, the last of its kind.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

A student driver's nightmare.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

Catacombs turned marketplace.

"Purveyors of traditional sweets and vintage treats."

A five-story homage to tea times past.

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

High-end antique collection housed in a centuries-old church.

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

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

A naturally mummified 2,000-year-old man.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

Hear the quietest sound from across the dome.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.