A black sand beach where glacial fragments wash ashore and look like sparkling diamonds.

One of the first intercontinental ballistic missile sites in the United States.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

A legendary tree towers within its own vibrant sanctuary.

In a small Japanese garden off a busy Denver street, a memorial to a brave, principled politician.

A mural and a few historical markers commemorate Denver's once-thriving Chinatown, which was obliterated in a racist riot.

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

A unique auditory experience right on the sidewalk.

These murals from the 1920s beautifully depict America’s industrial age.

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

This sidewalk tribute honors Colorado's great culinary creation.

At the time of its completion, it was the tallest dam in the world.

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

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

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

Every president in history is immortalized in bronze in downtown Rapid City.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Next to Salt Lake City's Assembly Hall stands a tribute to some unlikely heroes of early Mormon settlers.

A tunnel with windows, so you don't miss out on the impressive views.

The unusual patterns in this rock formation result from two distinct modes of weathering.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.