This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

The mysterious “claw marks” said to be left by the Devil on Pisa’s famous cathedral.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

The middle finger of modernity.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

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.

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

A plaque on the base of this statue holds a bewitching design.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The oldest operating pharmacy in the world features 800-year-old recipes.

This poor little statue is the most vandalized memorial in Washington.

The only female equestrian statue in Washington, D.C. is a 15th-century French heroine.

The last remaining building in Washington, D.C., built by H.H. Richardson, one of America's most iconic architects.

An amazing example of early-20th-century architecture, this church features marble transported from Utah.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

This abandoned church languishing for decades is now one man's passion project and subject of paranormal investigators.

At Brandy Station, Civil War soldiers left their mark on the battlefield and the walls of this small wooden house.

Historic Lee family homestead built in 1785, later serving as a private home and a Civil War hospital.

The romance of early commercial flight still fills this Art Deco destination.

Home to a vast and influential collection of Shakespeareana.