Baroque celebration of the end of the Great Plague of Vienna.

A pair of connected skyscrapers form this symbolic gateway.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

This statue is the only female representation of Rome's "talking statues."

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

St. Francesca Romana, patron saint of drivers, resides in the church she founded.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

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

Its interior is adorned with some of the best examples of early Christian mosaics.

A large replica of a monumental Roman inscription is located on the side of this museum.

An ancient Egyptian obelisk is now used to commemorate fallen Italian soldiers.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

A massive marble foot is tucked away in a small alley near the Pantheon.

Erotic art covers the walls of the largest ancient pleasure palace.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

This gallery commissioned by Cardinal Spada is known for its magnificent optical illusion.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.