A mythical chimera first sculpted in 1936 as a mix of the main animals of Texas livestock.

A modernist landscape of water and sci-fi concrete.

The man who wasn't there.

A time-capsule monument reminding future generations of the importance of efficient and effective use of natural resources.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

This vacant church in the Financial District was once the heart of New York's first Syrian immigrant community.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Go inside to really appreciate this 500-year-old technological masterpiece.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

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

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

2300-year-old Roman road connecting the empire.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

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

This Roman amphitheatre was also the location of the first gladiator school.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.