Along the pavement of this neighborhood in Madrid are quotes from famous authors.

Earth's rocky history has rarely glittered so brightly as it does in this Spanish museum.

A comprehensive look at the art of Joaquín Sorolla in his former home in Madrid.

Giant granite sculptures representing family on the northern coast of Spain.

The oldest Roman lighthouse still in use.

Made up of 3,200 recycled glass bottles, this tree pays homage to Asturia's love of cider.

Marvel at this immense work of art that greets arrivals to the city.

The Museum of the Forum of Caesar Augusta showcases the city's ancient Roman sewage system.

Once used to calculate the various levels around the country.

You'll need a microscope to see some of the minuscule masterpieces in this modest museum.

Continental Europe's only museum devoted to salt and pepper shakers features more than 20,000 designs.

The legendary bathing site of a Moorish queen is actually part of a Roman fish farm.

This cuddly-looking statue symbolizes the bond between Spain and China.

Once a resting spot for King Fernando VII.

This dragon narrowly escaped demolition.

Dr. Fleming's work saved the lives of many bullfighters thanks to his discovery of penicillin.

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

Stuck in the middle of a modern Madrid city block are the remains of a 19th century sports complex.

A masterpiece of Rationalist architecture in the center of Madrid with lizards on it.

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

A thorough look at the development and history of the underground's rolling stock of the Madrid subway system.

Infamous and now demolished panopticon prison built by its former inhabitants.

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

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