This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

This little valley along Highway 1 is engulfed by thousands of lilies during the spring season.

This chimerical bridge/tunnel appears to dead end right into the sea.

The highest bridge in America was built for an almost unnervingly small amount of money.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

Plans for this peninsula included houses, the United Nations Headquarters, and a nuclear power plant. When none of them worked out, it became an expansive park.

Stroll through a wonderland of stupendous moss-covered trees.

Before he was America’s most famous preservationist, John Muir was an ingenious mechanical inventor.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

A lasting remnant of The Blitz.

Catch a ride through the Pennsylvania countryside on this historic narrow-gauge railroad.

This magnificent arch is all that remains of a former smelt mill.

Maine's oldest diner also happens to win acclaim for its elevated comfort food.

The oldest continuously-operated inn in the United States, once owned by Henry Ford.

This whimsical stacked cabin looks like something out of a children's book.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

A lighthouse built to save lives that took quite a few with its treacherous location.

Small, privately owned island divided between Michigan and Ohio with abandoned vacation homes and a derelict lighthouse.

This tower was once used to create ammunition for early settlers.

Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

Old Tudor home moved on thick iron rails to a new spot.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.