One car at a time please.

A small chapel celebrating the spiritual bond between dogs and humans.

The summer home and later final residence of acclaimed American sculptor Augustus Saint-Gaudens.

A memorial dedicated to victims of the Irish Potato Famine who perished while quarantined on this island.

A small plaque promises cold, hard cash in exchange for work by the famous pop artist.

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

A multiversal transit station located right below a highway interchange.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

A small store filled with animal skulls and other curiosities.

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

A technicolor place of worship for Elevationists.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

There are eight natural springs around town, each with a slightly different taste.

This super steep hike ascends 2,000 feet in less than a mile.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

The highest bridge in America was built for an almost unnervingly small amount of money.

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

Check out a hidden collection of vintage neon signs.

The largest self-built castle in the U.S., six decades in the making.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

When ecosystems collide in the arid Southwest.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.