The Pope’s secret escape route.

A lover's walk between hilltop towns, decorated with graffiti love notes.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

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

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

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

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

The world's most active stratovolcano is almost always erupting.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Five candy-colored villages on the Italian Riviera.

Venice's island of the dead.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Pompeii's less famous neighbor is still revealing her secrets.

This strange geological landscape erupts with sudden bursts of water.

A glacier pocked with ice caves and surrounded by rainforests.

Highly spherical boulders on the shores of New Zealand.

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

Taihape's claim to fame is a fictional Kiwi farmer wearing gumboots.

The "punniest place on Earth” has nearly as many bull-themed puns as it does people.

Tubing through a cave lit with glowworms is a magical underground experience.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

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

Exotic feline breeding compound and conservation center.