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

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

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

An alchemist's "magic door" stands in the middle of a Roman park.

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

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Architectureal fantasy quarter of Rome.

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

Italian cave with exceptional acoustics and an unsavory history.

Built on a medieval synagogue, this church has a burial crypt, tunnel system, and Jewish ritual bath hiding deep underneath.

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

A quiet Sicilian village is home to a cafe that had an important role in "The Godfather."

This eatery transports diners to a place that no longer exists: East Germany.

This teeny-tiny park built by a San Francisco man in 1962 is mostly stairs.

Get a taste of Chamorro cuisine, family-style, at this popular restaurant.

The oldest dim sum restaurant in the United States is a nostalgic jewel.

A playing field for a popular French past time can be found tucked away in a quiet corner of Golden Gate Park.

The first fresco Diego Rivera painted in the United States can be found in the former San Francisco Stock Exchange.

A shining, cold, black organ lies in San Francisco's financial district.

A masterpiece in Golden Gate Park by virtue of the artist’s debt.

Guns that have been defending San Francisco since 1904.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

A garden oasis filled with flowers mentioned in the works of William Shakespeare.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.