A "haunted" landmark on the coast of Southern California.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

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

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Go inside to really appreciate this 500-year-old technological masterpiece.

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

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

This curious, round temple is the oldest still-standing marble building in Rome.

The 10-foot-wide Long Beach home was built on a dare.

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

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

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

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

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

The Citrus Variety Collection at UC Riverside contains two trees of each of the 1,000+ varieties of citrus.

These structures were inspired by both Native American shelters as well as, strangely, an ice cream shop.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

Experience a charming 1930's version of "infotainment."