The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

The oldest vestiges of Madrid found here, have been incorporated into this new museum.

Part of the medieval watchtower is displayed in an otherwise ordinary parking garage.

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

This unassuming bookstore in the heart of Madrid is one of the oldest in Spain.

This little sun pays homage to a massive gate that once stood at this location.

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

This sculpture pays homage to the street sweepers of Madrid since its inauguration in 2001 in Plaza Jacinto Benavente.

One of the world's oldest universities houses an incredible collection of anatomical models, mummified body parts, and human bones.

This fascinating and poignant museum chronicles every imaginable aspect of Spanish colonialism in the Americas.

Inaugurated three times, this tower offers some of the best views of Madrid.

This modernist bridge highlights the bear as a symbol of Madrid.

King Carlos IV laid the first stone during construction of this chapel.

An ancient Egyptian temple in the middle of Madrid, Spain.

Dedicated to a young woman who broke gender barriers at the University of Madrid.

Artist Natividad Sánchez wrote a new ending for one of Roman mythology's tragic love stories.

A small museum displays some of the artifacts discovered during a subway station renovation.

A must for film lovers in Madrid and home to the Spanish Film Library's projection space.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

This piece of early engineering is rather unknown despite its location in the heart of Madrid.

A window into a long-lost world, these colorful tiles advertise a long-defunct range of purgative teas, harmless smokables, and diarrhea cures.

A statue commemorating a beloved stray dog who was adopted by the entire neighborhood where he lived.

An amazing collection of rare wind instruments where visitors can give the iconic Swiss Alphorn a toot.