From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Once the home of a hermetic monk, this cave now houses a small church.

This sculpture used famed boxer Joe Louis as the inspiration behind its body.

The kitsch mansion of the former Romanian president Nicolae Ceaușescu features a golden bathroom.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

Romania's triumphal arch looks out over Bucharest.

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

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

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

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

Tower with a double-helix spiral, adorned with letters of the Georgian alphabet.

With over 10,000 lights, this engineering marvel lights up the city after dark.

Monks in the empyreal Alazani River valley have preserved their 1,000-year-old winemaking tradition.

A museum glorifying the life of Stalin, located in the city of his birth.

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

You'll find just about anything in this funky Tbilisi flea market.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

The first skyscraper to include a Ferris wheel built into the facade.

Ancient rock-hewn town that witnessed key events of Georgian history.

Fast food feels like fine dining at this award-winning modern Georgian building.