An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

The yawning maw of this pagan visage is said to bite off the hands of liars.

The glowing blue Nymphaeum of Emperor Tiberius.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

Geothermal waterfalls in Tuscany.

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

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Architectureal fantasy quarter of Rome.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

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

A 16th-century horror show built in a lovely Italian garden.

An old department store turned Nazi prison turned artist commune.

This TV tower once secretly housed a GDR intelligence team.

Largest illuminated advertisement sign in the world.

A museum honoring Germany’s cucumber mecca offers a great dill of gherkin history.

Metro station with a claim to rock n' roll fame.

A strange rock formation with numerous legends trying to explain it.

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

Cold war icon and onetime "hole" in the iron curtain.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

A 12th-century fortress containing some of Berlin's oldest buildings.