The floor of this spectacular Baroque sanctuary is covered in memento mori.

Week-long block party becomes a competition for the best decorated street.

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

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

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

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

This museum is rotten with a century of wax medical deformities.

Pompeii's less famous neighbor is still revealing her secrets.

This medieval city gate is now a blend of the past and the modern world.

San Gennaro, the patron saint of Naples, greets pedestrians between these narrow city streets.

The relics of dozens of martyrs are stored in a single chapel.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

The mummified relic of St. Antoninus.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

Drink wine handed out through a window as part of an age-old tradition.

Rub it for a bit of good luck.

A 15-foot-tall statue of the head of the Sopranos family greets passengers at a train station in southeastern Lithuania.

Plaques celebrating Lithuanian writers freckle a wall of this picture-perfect path.

A 300-kilogram egg sculpture that embodied a neighborhood revival.

While this monument tile is shrouded in mystery it also marks the end of the longest ever human chain.

This former KGB building is now a museum memorializing the people who suffered during the Soviet regime.

The largest coin pyramid in the world is a carefully balanced stack of over 1,000,000 pieces.