Historic beer hall in Bucharest with magnificent stained glass and a lively folk band.

Saint Borromeo often prayed in this austere crypt during the 16th century.

Third time's a charm, or in this case, two testicles are.

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

The remnants of a fictional Viking village film set now serve as an educational and historical hotspot.

This strange sculpture is an enigmatic icon of this medieval German town.

Hamburgers are intensely proud of their tunnel beneath the river.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

A stunning two-story timepiece within a medieval Brick Gothic church.

Dancing skeletal figures pay homage to a medieval mural destroyed during World War II.

A mammoth WWII anti-air defense tower has been repurposed as a hotel with a rooftop garden.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.

Climbing to the top of the cathedral's bell tower offers sweeping views of these medieval ruins.

Model Trains and Much More in Hamburg.

A medieval church built up to defend its village.

The last bastion of Roman presence north of the Alps looms over a German town.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

Is this a portal to another side of the cosmos?

Ride a dragon train into a world of dwarves.

This monument pays homage to a classic Dutch tune.

Visit an imposing 13th-century Transylvanian citadel lurking not far from the region's more heavily touristed attractions.