A medieval fountain lined with 99 unique stone faces whose origins and meaning remain unknown.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

A Nesting Doll of Churches.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

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

Rome's semi-secret peephole vista is also a former Crusader stronghold.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Where the lovelorn find a home for their sentimental keepsakes.

A musical instrument played by the sea.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Bridge that died in war and was resurected.

A little sculpture with a large wardrobe.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.