A detailed pachyderm supports Rome's smallest Egyptian obelisk.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

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

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

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

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

Breathtaking and huge 430 year old maps of Italy.

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

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

The last remnants of a lakeside airport that was bulldozed overnight by the mayor of Chicago.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

The subtle science of a master molecular gastronomist.

The only airport with a people mover system designed by Walt Disney Imagineering.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

The world-record holder for the longest bridge stretching continuously over water.

The house that birthed The Old Man and The Sea is now a museum devoted to the old man who wrote it.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

A tomb in this cemetery holds soil from every country in Latin America.

A nuclear power plant abandoned along with an international allegience.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.