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

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

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

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

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

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

These distorting, funhouse mirrors achieved fame in a renowned piece of Spanish theater.

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

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

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

The earliest known map to show America, discovered by accident at a Paris bookshop.

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

Leonardo da Vinci was one of many to find inspiration in this unique, rocky landscape in Tuscany.

A 14th-century abbey founded by a forest-loving order of monks now sits in the center of a pristine nature preserve.

This beautiful Croatian fortress is haunted by legends of forbidden love.

This medieval footbridge in the Swiss Alps is known to attract cliff-jumping daredevils.

The Swiss hilltop housed an early 20th-century vegetarian nudist colony.

This ossuary is more than five centuries old and is heralded as one of the finest in Switzerland.

The gravestone of a famous poet features a fittingly poetic epitaph chosen by the writer himself.

The largest underground lake in Europe.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

These temples are among the oldest free-standing stone buildings in the world.