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

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

This breathtaking monastery was established by Saint Benedict himself 1,500 years ago.

2300-year-old Roman road connecting the empire.

Architectural monsters are devouring this palace's every door and window.

Deceased nuns were placed on stone chairs to decompose, while the surviving nuns prayed near the lifeless bodies.

This hidden alley near the location of Rome's first theater was the site of a curious miracle.

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

These hut foundations are believed to be the residence of Romulus, founder of Rome.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

A private collection of massive steel monsters guarding a Texas pipe works.

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This small piece of railroad history sits behind the parking lot of a chain grocery store.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The 28-foot granite map plots the locations of 40 theaters in New York City.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

Twenty churches beautifully painted by 19th-century Czech and German immigrants in Texas.