A subterranean display of public art and architecture.

After the queen of Spain had a dream where these statues fell and crushed her, they were removed from the palace and given new homes around Madrid.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

Sometimes called the Banksy of Madrid, Muelle was a pioneer of street art in the Spanish city.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

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

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

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

One of Madrid's oldest trees, with a long and colorful history, resides in El Retiro Park.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Commonly acknowledged as the only public monument to the Devil himself.

Known as the Casa de las Siete Chimeneas, this haunted 16th-century manor has a dark, mysterious past.

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

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

This airport currywurst stand is made out of retro airplane parts.

A giant snail sculpture looking longingly at the German traffic museum.

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

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

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

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

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

A stairway to heaven, or to nowhere at all.

This red London phone booth once stood in front of Buckingham Palace and was used by the queen.

A miniature model of what will be the world's largest telescope.