While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

A former smithy turned cultural hub with the capital's largest mural space.

The encased skull that is widely believed to belong to St. John the Baptist.

A neighborhood church's unusual abstract stained glass was the final project of avant-garde artist Jean Cocteau.