This cubist Vienna church building looks like some sort of alien stonehenge.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Elaborate tile work in this railway station tells the story of Portugal.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Eighty million natural history specimens call this gargantuan museum home.

For one day every month Barcelona's Estació de França transforms into a market for model trains.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

A beautifully well-preserved ancient Roman villa.

Erotic art covers the walls of the largest ancient pleasure palace.

Ancient snack bar of the Roman Empire re-opened.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Two stone columns flank the grand Venice square, but there were supposed to be three.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

Architectural monsters are devouring this palace's every door and window.

Architectureal fantasy quarter of Rome.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

Budapest's Communist-era statues, banished to the suburbs.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.