While there are no actual snakes in the history of this crooked road, there may be a number of dead horses.

This tiny site in Iowa, part of a patchwork national wildlife refuge, is home to ancient flora and fauna.

The school tested mustard gas for the U.S. Army during World War I.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

Pay homage to a preeminent matriarch, and the native Dena’ina people, at this sculpture installation in Anchorage.

Mass grave of 50 unidentified French Soldiers who died at the Siege of Yorktown, 1781, that gave victory to the American Revolution.

A replica of the gaslit streetlamp under which three teenagers founded a football club.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

A memorial to the soldiers who died in the bloody battles to control Verdun in World War I.

A swath of France so devastated by war it is still forbidden to go there.

Site of one of World War I's most horrific scenes.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

First flying reptile discovered in British Columbia was for years forgotten in a cabinet.

Greenery cloaks this serene sculpture inspired by the famous Lost Gardens of Heligan.

Grant Wood painted some of his most famous works of art at this studio.

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

This super-sized statue is the only public memorial to the deal that ended America's neutrality during World War II.

The sculpture's largest spire points directly toward the North Star.

This mile marker stands at the unofficial end of a highway built to defend the United States from a Japanese invasion during World War II.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

On a clear day, you can see all the way to the Virgin Islands from the top of this observation tower built in the 1960s.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.