The walls and streets of the ancient city are peppered with penises.

A beautiful multicolored mound formed by the mineral deposits of the Orenda Spring.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

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.

Fossilized sea bottom and lime quarry.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Ancient snack bar of the Roman Empire re-opened.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

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