The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

This extinct shield volcano is the lightning rod of the Cascades.

Journey through a bit of nostalgia inside this classic record and video store.

This hidden treasure provides a charming access point along the south side of Baker Park.

This bridge over D.C.'s Rock Creek Park is sometimes called the "Buffalo Bridge" because of its four buffalo sculptures, which were cast from a single piece of bronze.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

This poor little statue is the most vandalized memorial in Washington.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

This colorful but controversial ceiling has been likened to a 21st-century Sistine Chapel.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

Proto-CIA agents trained with grenades in the sand traps and fired machine guns from the fairways.

The span is crooked and made from two older recycled bridges.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

Overshadowed by other, more famous Maltese catacombs, this ancient burial chamber has one of the best examples of a ritual agape table.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

At more than 5,000 years old, these structures are among the oldest free-standing stone buildings in the world.

These temples are among the oldest free-standing stone buildings in the world.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

The oldest Roman lighthouse still in use.