Guitarist Paco de Lucía overlooks travelers as they pass through this train station dedicated to his legacy.

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

Strange masks and obscure costumes are housed in this old Madrid corrala.

This small museum tucked within a subway station holds pieces from Madrid's past.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

An exact replica of a colossal Olmec head sits atop a pyramid within a Madrid traffic circle.

Unconventional site where the tracks of Zurich tramcars intersect.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

This conical hill was built as a testing ground for an engineer known as the Glider King.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

A fascinating insight into daily life in the Eastern Bloc.