Colorful clay cliffs tower over an unofficial nudist beach on Martha's Vineyard.

This candy-colored storybook village originated as a 19th-century Methodist campground.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

This propitious plastic porcine has been petitioning park visitors to pick up after themselves for more than 50 years.

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 rare example of a medieval house in Rome adorned with a melancholic inscription.

A rather vulgar example of the transition from Latin to the Italian vernacular.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

This curious, round temple is the oldest still-standing marble building in Rome.

This ancient market is often referred to as the oldest shopping mall in the world.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

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

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

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.

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

Rome’s legendary peephole vista is also a former Crusader stronghold.

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

An astounding collection of medical specimens, including bits of President Lincoln.

One of the oldest standing structures in Montgomery County, Maryland.

She stares out across six lanes of traffic, clutching a musket and infant with determination.

This unusual subway stop was originally a real estate office.

The ruins of this long-abandoned unsuccessful gold mine can still be found.