Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

An often overlooked ancient site in downtown Athens with substantial history (and nature).

The Italian revolutionary's legendary wife is portrayed on horseback waving a gun and holding her child in this memorial on the Janiculum.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

This is the oldest Roman-made bridge in the city still existing in its original state.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

This clifftop arch is a natural stunner.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Erotic art covers the walls of the largest ancient pleasure palace.

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

Ancient snack bar of the Roman Empire re-opened.

A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

After suggesting criminals be burned to death on this rock, a king's advisor suffered his own punishment.

A place to see how French aristocrats lived in the early 1900s.

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.

A whale of a public art display towers atop Juneau's cruise ship dock.

One of two side-by-side totem pole parks dedicated to educating visitors on Tlingit history and culture.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

Huge stone depressions which may have acted as an Incan agricultural experiment.