This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

Go surfing on this urban wave, "hacked" by local surfers.

A fearsome dragon clings to a corner of Munich's city hall.

The patron saint of spinsters grasps a container of dried blood.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The footprint of a frustrated devil in Munich's Cathedral.

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

A star fort along the C&O Canal in western Maryland that protected America in three wars.

Home to items never before seen by the public.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

A priceless collection of the Nation's cryptologic history.

This structure among the trees was the result of divine inspiration.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

Macabre astrological automaton clock dating to the late 1400s.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.