This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

This strange statue features a bust of the famous composer plopped atop a woman's body.

Bizarrely-painted church designed by a controversial artist.

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

This outsider art house has gone from clinical creation to astounding artwork.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

This museum promotes informed contraception by documenting its often secret past.

Handsomely crafted representations of our round planet.

Tourists to the mountaintop Sicilian town often overlook its ancient fortifications.

This amazingly preserved Doric temple was abandoned before it was ever completed.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

Why a column on the entrance is inscribed with a verse from the Quran is one of Sicily's many mysteries.

A medieval wash house where people washed clothes in a river allegedly formed by the tears of a mourning nymph.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

An eccentric Victorian aristocrat's enormous collection of medieval armor and weapons from around the world.

A mysterious shape catches the eye in this 16th-century painting.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

Sculptor Antony Gormley used chaos theory and fractal growth to design his tallest creation.