Despite many attempts to finish this overpass, it has been abandoned since the 1970s.

Local lore says a serpent-like beast lurks in the deep basin below the falls.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

Tour the original street level of Port Angeles, buried underground in 1914.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

This legendary urban waterfall creates a dazzling display of rainbows.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

The colonial city's social history is reflected in its fanciful door knockers.

A mysterious dark-skinned Christ statue has been this town's religious center for centuries.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

The world's oldest bookshop still in operation.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

One of the smallest bookstores on the planet.

An optical illusion found amid a logged redwood forest.

This private residence was the template for one of the most beloved television homes of all time.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Lucha Libre (Mexican Wrestling) themed taco shop.

An inconspicuous footbridge beloved by San Diego locals.

San Diego's most historic and haunted home.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.