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

This was the first homestead registered after President Abraham Lincoln signed the Homestead Act into law.

The abandoned remnants of a little sanctuary for world peace that fell into disrepair.

This garden among the Florentine hills is complete with a meditation path and works of poetry.

A massive natural rock arch gives the Tuscan mountain its own window to the sky.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

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

Inside features a display of how artistic crucifixes transformed throughout the centuries.

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

A local legend says the theft of a holy relic explains the hand-shaped bloodstain on the facade of this cathedral.

The only substantial part of Nazi Germany's formidable defensive line through Northern Italy that survives today, largely intact.

The naturally mummified body of a peasant girl saint.

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

Fortified medieval tower house with lovely roof garden.

A stunning bridge that appears as if it's lunging to the shore, and has a legend of a devilish architect.

A factory director designed what was the world's longest suspension footbridge in 1923 so his employees could get to work safely.

A memorial to Brazil's little-known role in World War II.

The bright red cars take travelers through breathtaking Tuscan scenery.

Centuries of warfare, tragedy, executions, and poetry come together in this 13th-century fortress.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

A genuine Tudor manor transported piece by piece from England.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

A convincing little bit of ancient Egypt smack dab in Richmond, Virginia.