The field of tiny caves that mark this Chinese cliffside are each their own historic Buddhist temple.

Ming Dynasty necropolis raided during the Cultural Revolution.

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

This Tang Dynasty behemoth is the biggest Buddha in the world.

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

A modern-day Lascaux cave underneath Paris.

A book bound in the skin of an infamous criminal, along with countless other specimens.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.