Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

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

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

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

This embalmed man is one of the best preserved mummies from the Canary Islands.

This taberna has been frying up crunchy salt cod since 1860.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

Hidden under a center for the elderly are the dungeons which were used during the Spanish Inquisition.

A neighborhood represented by an apparent geocentric and flat-earth model of the Solar System is hidden in the subway of Madrid.

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