A meow-velous tribute to a beloved street cat, made famous on the internet.

A marvel of Byzantine engineering under the streets of Istanbul.

A stick-sprouting statue watching a duo of disembodied dancing deities.

A scale model of Russia so big visitors are offered binoculars to rent so they can see the whole thing.

A surreal pile of colorful junk fills a small yard in an otherwise gray neighborhood.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

A hidden three-foot-wide house separates these two regal churches.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

A collection of old neon signs from all over Poland line a secluded courtyard.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

Why a column on the entrance is inscribed with a verse from the Quran is one of Sicily's many mysteries.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

Moscow's most popular cemetery includes the graves of numerous cosmonauts.

The Netherlands is home to a bridge printed out of reinforced concrete.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

100 year tradition of fist fights, marked by marble footsteps.

This military mausoleum captures the solemn grandeur that most memorials only aspire to.

Centuries ago, red and white wine poured from the statue's breasts whenever a new Venetian ruler was elected.

A sudden, striking cluster of hills south of Padua has been attracting visitors for centuries.

One Italian taxi driver covered his entire house in small seashells creating a weird bit of architecture that is preserved to this day.

The bomb-ravaged remains of of a colossal Neptune.

This ultra-modern burial building would have stacked the dead like a giant filing cabinet.