An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

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

At this rare mosque in Tbilisi, Sunni and Shia Muslims pray side by side.

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

The charmingly disheveled clock tower of Tbilisi's puppet theater.

Unusual building appears to be haphazardly built from randomly piled bricks.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

Armenian monks at an island monastery in the Venetian Lagoon make a rare rose petal jam.

Originally a leper colony, the island is now an Armenian monastery that's home to an incredible manuscript library and eclectic museum.

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

The pile of books behind the dignified writer gave the statue a most undignified nickname.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Go inside to really appreciate this 500-year-old technological masterpiece.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

Where Venice's gondolas go for a tune-up.

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

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

Huge stairway leads to this massive gallery.

This cannonball embedded in the side of an Edinburgh house once served a surprisingly pedestrian purpose.