Places pierro69740 Wants to Go

This house covered in small stones was the work of one man over the course of nearly 30 years.

This Art Nouveau gate still stands at the former entrance of a 20th-century Spanish writer's colony.

Meant to resemble a massive tree, the building is the best example of Spanish organicist architecture in Madrid.

A curious memento mori hangs in the magnificent Cathedral of Segovia.

This abandoned gold mine found a second life as a post-apocalyptic film set.

Nicknamed the "Spirit of Paul Klee," this colorful apartment building features an array of multicolored panels.

Rumors and legends of secret Nazi activities surround this eerily remote island mansion.

An outsider folly near Madrid.

A 12th century church completely covered in shells.

This architectural oddity is an oasis of green on the outskirts of Valencia.

These striking ruins of a castle resemble a ship's stern.

This Roman arena once played host to bloody gladiatorial battles.

The ruins of an ancient Celtiberian town with incredible rock-cut buildings and a Roman aqueduct.

An abandoned socialist utopia built in the late 19th century.

This historical manor is complete with a magnificent garden.

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

The remains of an encyclopedic sculpture garden later used as an internment camp.

An ornate tower shows off a local artist's architectural flair.

Once a resting spot for King Fernando VII.

This enormous censer uses a pulley system installed over 400 years ago.

Fascinating exhibits of prehistoric and ancient artifacts displayed with a uniquely modern touch.

The current seat of the Parliament of Andalusia was once the epicenter of the Great Plague of Seville.

The unfinished final resting place of some of Spain's most prominent politicians.

This 47-story "M" needed 20 years to be completed