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

This massive home was constructed by one of the greatest conservationists in Colorado history.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

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

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

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

St. Augustine's record-setting narrow street was designed to protect against pirates.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Bronze footprints mark the path where a civil rights leader tried to march in peaceful protest before being knocked unconscious.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

Location of a reliquary containing bone fragments of 18 saints.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

Walk in the footsteps of the famed astronaut at Purdue University.

Purdue students would lean over this iron fence to skirt campus rules against smoking and courting.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

Symbolic attempt to overcome the issues of life.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

The first spinning jail built in the United States is the only one that still turns.

The home used in just a few seconds of film that came to define the setting of a hit sitcom.

Nature and art meet in this curvy creation

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.