Constrained by time and topography, this civil engineering landmark was constructed 100 feet above Starrucca Creek over the course of a single year.

In the middle of the Alaskan wilderness, lies a train trestle to nowhere.

One of El Paso's oldest dives may have inspired the classic Marty Robbins song.

A series of murals depict the evolution of plant life from the Precambrian to the modern day.

A tree bears footwear on the loneliest road in America.

This former Mormon settlement is reemerging from the receding waters of Lake Mead.

Bodie's 20th-century rival was a paragon of respectability and calm—but the mines eventually ran dry.

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

Roaming bison and a spectacular view at the highest point in Nebraska.

Venture into the past with an unlisted exhibit hall featuring extinct birds.

A monument commemorating how a frontier town got its unusual name.

Among the may artifacts on display is a clock made of 50,000 individual pieces of wood.

Come for the history lesson, stay for the mule-pulled boat rides.

In eastern Oregon, two mineral hot springs sit along the Malheur river.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

It’s hard to believe this hostile landscape was once a health resort.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

A "house to which to flee" for settlers in colonial Pennsylvania.

An industrial waste tourist attraction.

A smaller model of the Da Vinci sculpture that took 500 years to come to life.

This arcade is one of the last places to catch a public performance by the now-defunct ShowBiz Pizza's house band of animatronic animals.

A small mountain made entirely of banded iron stone overlooking downtown Ishpeming.

Step aboard the first ship to circumnavigate North America.

Welcome to the home of the world's largest typewriter company.