This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

A historic, century-old house plopped along the perimeter of Houston's ballpark.

The oldest continuously occupied public building in the United States.

At this farm in upstate New York, the former president plotted his reelection campaign.

A view-altering observatory at the University of Texas.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

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

An 11th-century runestone decorates the halls of Terminal 2 of this Scandinavian travel hub.

Poetic, metallic giraffes adorn a square off an Edinburgh thoroughfare.

The highway's southernmost spot is a beloved local attraction.

The schoolhouse where Jesse Merwin, the inspiration for the "The Legend of Sleepy Hollow" character, once taught.

This ancient Egyptian obelisk still bears the wounds of World War I.

This Roman relic was discovered in Scotland by a mudlarking ferryman.

The commemorative stone column conceals a secret laboratory.

A natural formation that resembles a camel resting in the New Mexico desert.

A 300-kilogram egg sculpture that embodied a neighborhood revival.

A giant concrete churn carries the legacy of American resilience, unity, and greed.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Taos Pueblo recipes, foraged ingredients, and outdoor ovens define the menu at this eatery.

This popular pilgrimage site offers a hole filled with holy healing dirt.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

A serene garden path lined with 36 haiku stamped into clay stones.

One man’s passion for gas stations is on display along the Rio Grande in northern New Mexico.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.