In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

A pair of gargoyles peer into unsuspecting passengers at Denver’s conspiracy-packed airport.

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

This stunning, technicolor array of geysers has occupied Ferril lake since 1908.

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

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

One man's love for East Coast diner culture brought an entire eatery all the way from New Jersey to Colorado.

More than 100 steam and diesel locomotives bring Colorado’s rail heritage to life.

See 150 million-year-old dinosaur tracks and bones dating back to the Jurassic period.

Drift through decades of high desert music history at this funky hometown museum.

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

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.

This museum offers an actual time machine back through Colorado's past.

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

A multiversal transit station located right below a highway interchange.

Between a bike path and the South Platte River sits a piece of modern space history.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.

An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.