Romania's triumphal arch looks out over Bucharest.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

The Natural History Museum that time forgot.

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This no man's land slicing through the island is strewn with abandoned relics of another time.

An ancient necropolis of magnificent tombs.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

The bears of Bern have been a city highlight for over 500 years.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

A giant snail sculpture looking longingly at the German traffic museum.

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

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Go surfing on this urban wave, "hacked" by local surfers.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

A small but immensely extravagant palace built by the "Night King."