This spaceship-like Serbian monument reaches for the stars in celebration of the fallen fighters of fascism.

Structure built from the skulls of vanquished foes.

Slovenia's first mosque is a striking mix of Islamic and modernist architecture.

A relic from the Industrial Revolution got a second life as a contemporary performing arts space.

The Slovenian architect designed many landmarks in the capital city, including his own dream house.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

The world's oldest grape-producing vine has survived four centuries of turmoil and even has its own anthem.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A painfully obvious spy house sits right across the street from the Russian Embassy.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A historic neighborhood church is reborn as a psychedelic arts collective.

The site of the climactic scene from the classic horror film is now a historic landmark.

The United States Capitol's former columns still stand.

This unique sculpture is often overlooked by pedestrians.

A concrete Picasso in the middle of a student housing complex on the outskirts of Stockholm.

A wooden street sign is the last remnant of this 400-year-old alleyway.

Finally reunited, the three effigies now stand in a museum courtyard.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

Street artists transformed this abandoned industrial neighborhood into one of Europe's largest graffiti exhibitions.

Stockholm's deepest subway station is also a stunning ecological wonder.

Sweden's "good old days" painstakingly re-created in a model village.

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.