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

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

A perfect circle of 24 mysterious holes dates back to prehistoric times.

One of three remaining theatres in the United States created in the Art Deco Mayan Revival style.

An innovative local park built from an abandoned sewage treatment plant.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

A Rocky Mountain city provides a happy ending for a pinto pony and his Brobdingnagian red chair.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

This sidewalk tribute honors Colorado's great culinary creation.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A downtown park built on top of unclaimed graves.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

This floating sculpture of ice is a poignant reminder of nature's power.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

Tiki luxury on Nob Hill.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

The library's graceful rotunda is like a bibliophile's temple.

This bakery sits on the site of the Black Panther Party's first headquarters.

Thousands of crosses and markers for soldiers who lost their lives in Iraq and Afghanistan blanket a California hillside.