Flowers have mysteriously appeared on her effigy every day for the last 150 years.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

This Late Gothic building that once housed Erasmus is now known as the filming location of "Suspiria."

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

The most impressive of Basel's three remaining city gates.

This artistic fountain display pays homage to this area's theatrical history.

Scattered throughout London are ancient remnants of the city's former bounding wall.

This ancient Egyptian obelisk still bears the wounds of World War I.

Rebuilt remains of a temple to Roman god Mithras.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

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

The 3,600-year-old archeological sensation is considered to be the oldest representation of the cosmos.

An eerie, derelict amusement park in Berlin.

This futuristic German television spire is actually the world's largest digital clock.

Twisted buildings adorn the banks of the Rhine river.

This "floating railway" is one of the world's oldest monorail systems.

A hidden stream deep in the mountains creates one of the largest tufa waterfalls in Serbia.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

A miniature city, once ruled by the Queen of the Netherlands.

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

Op-art architecture designed for happiness.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Abstract monuments express sorrow and resilience at the site of a horrific massacre in Nazi-occupied Serbia.