A glimpse of a waterfall is reached by a steel catwalk along a slot canyon located in an Ouray city park.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

Locals dubbed it the "Owl Building" because of its bird-like appearance.

With print dying, this local paper keeps the lights on by doubling as a stunning cafe and cocktail bar.

This quirky outpost and gallery inside a former church is an unexpected trove of handcrafted art.

A little stop along the Texas highway where Rock Hudson, Elizabeth Taylor, and James Dean stayed while shooting the 1955 film "Giant."

An abandoned quicksilver mining town surrounded by the Big Bend parks.

Mysterious glowing orbs float through the desert night.

Austin’s local mountain isn’t really a mountain at all.

Turning night into day in Victorian-era Austin to thwart a serial killer.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

This hidden sculpture garden full of Wild West art is one of San Antonio's best-kept secrets.

This beautiful grotto is one of those places where you can't believe you're just outside Austin.

This castle has links to Portugal’s founding and struggles for independence.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Life's work of sculptor Elisabet Ney remains preserved in her last studio.

Elaborate tile work in this railway station tells the story of Portugal.

Eighty million natural history specimens call this gargantuan museum home.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”