A spectacular cave and a beguiling lake.

Seaside ruins of a settlement that date back to the first century B.C.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

Mountain where Jesus was first tempted by the Devil.

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

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

Try not to get slimed in Tribeca.

10,000 flowered plants bloom in the City of Roses.

A Roman-style column in Oregon hides a spiral staircase inside.

This sandstone mansion was the home of two of Oregon's most important pioneers.

This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

Portlandia is the second-largest copper repoussé statue in the United States.

A massive sea stack famous for its appearance in The Goonies.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

A beautiful 62-acre Catholic shrine and botanical garden.

The magic's in the hole!

A heavenly experience, right here on Terra Firma.

An emporium for the weird, creepy, rare, and just plain gross.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.