This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

The sea once considered an ecological wasteland is now called "crown jewel of avian biodiversity" by scientists.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

The Victoria-era quarantine station for Sydney.

Along a California highway is a kind of Jurassic Park made of metal.

The ghostly remains of an accidental sea.

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

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

These azure waters were thought to lead to the Mayan Underworld.

From Nunavut to Tierra del Fuego, you won't find any lighthouse higher than this one.

This collection of historical artifacts and tropical wildlife waits just beneath the surface of the water.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

One of the most accessible undersea plane wrecks in the world.

Small church built in the 19th century for whites and slaves to worship together.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

When Croatia became independent of Yugoslavia, the splintering governments left behind these concrete tunnels.

A whimsical bridge adorned with decorative dragons.

A full figure 4th century incorruptible saint lies in a glass coffin in Croatia.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

A monument celebrating the idea of reaching inaccessible places.

"We Seceded Where Others Failed."

This towering totem holds the title for the tallest in the world but only according to some.

This historic Victorian hotel has a scandalous history of affairs and murder.

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