More than a century old, this cast iron bridge on the Balmoral Estate leads to nowhere.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

This wildlife refuge is home to more than 200 species of birds, as well as monkeys, lizards, and other wildlife.

The translucent turquoise hue of these natural swimming pools comes from a high concentration of minerals.

Dine on superb local staples in a converted historic church.

A haunting—but not haunted—chapel remains in the woods.

Many of the cottages and houses of this tiny village are adorned with a local lord's collection of saintly statues.

The ruins of a 15th-century tower house.

A rare example of a Lowland broch.

A beautiful gorge filled with streams and waterfalls.

Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

Believed to be the capital of the the ancient kingdom of Dál Riata.

This steep-walled ravine contains animal-shaped formations made from sandstone.

A 5,000-year-old city in Peru holds the remains of a stunning set of astronomically-aligned pyramids.

A long strip of fossil-filled limestone makes up this natural bridge above a rushing stream.

A heritage park that explores the history and ecology of Whangārei.

The ruins of a once-grand castle that played host to a tournament with 100,000 attendees.

It holds a fabulously designed tribute to astronomer Edmond Halley.

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.

A series of caves, tunnels, and wells filled with fascinating figures and symbols.

This giant wooden sculpture is based on local folklore and is said to be "possibly" Sweden's largest troll.

Carved between 3500 and 1000 B.C., the distinctive carvings at this site are poorly understood.

This may be the world's only drive-through windmill.

A quiet country churchyard holds a monument to the last known sin-eater in England.