An ancient Roman temple first dedicated to an emperor's wife is now a church.

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

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The sumptuous ceiling was one of the last things Charles I saw before his execution.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A stunning landscape of bunkers that once stored chemical weapons.

Only known mainland rookery of the threatened Stellar sea lion.

The longest continuous lava tube in Oregon.

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

An extraordinary mixture of natural beauty and man-made phenomena.

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

Hollowed out cedar log tubs set in an ancient towering forest.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A heavenly experience, right here on Terra Firma.

No two pieces are exactly the same at Portland's hippo-themed hardware store.