An acoustic anomaly with a mysterious cause sits in the heart of Tulsa.

A self-built castle made by a mysterious man.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

This erect, phallic geological spire wasn't always named so domestically.

Less a museum than a bizarre fantasy world created by artists and engineers.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.

The first "Hut" was actually a small brick building.

A mysterious and terrifying public art goblin seemingly meant to inspire local legend.

A unique work of outsider art sourced from scrap metals and signifies conservation.

Romance fans worldwide make the pilgrimage to this group of historic covered bridges in rural Iowa.

Dedicated to the humanitarian efforts of the state's former governor.

The headquarters of the prestigious World Food Prize celebrates the heroes in the fight against hunger, has no cafeteria.

Architectural elements and building materials for this house were transported from Salisbury, England.

An unlikely Transcendental Meditation haven in the American Heartland built around the ancient Vedic principles of balance and harmony.

An Iowa town celebrates its heritage with the tallest working Dutch windmill in North America.

The magazine keeps a perfectly groomed display garden for its photo shoots.

Piled high inside this warehouse and coffee shop are salvaged goods that span every corner of the globe.

Millions of dollars worth of sculpture decorate this Iowa city center.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

This zombie-themed restaurant stands out in the heart of corn country.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.