Macabre astrological automaton clock dating to the late 1400s.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

This 19th century cyclorama acts like an analogue time machine to a different era.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

Giant, friendly pelicans in Central London, the most unlikely of places.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Hear the quietest sound from across the dome.

This micro-nation may be some sort of prank, but its constitution sure seems official.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

A black cat protests the City Guild in Riga's Old Town.

3,000 market stands in five former Zeppelin hangars.

Flamboyant architecture from the turn of 20th century.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

Something's watching you.

Model Trains and Much More in Hamburg.

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

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Gold Rush-era tombstones line the park's paths.