See the nearly two-century-old ruins of pre-railroad America at the former site of a lock on the Ohio and Erie Canal.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

This NASA test station is home to some of the world’s largest and most powerful space environment simulation facilities.

The national park was once a plantation estate.

Rows of 19th-century brick ovens used to process coal into coke form the center of a wooded park.

This campus museum commemorates a national tragedy.

This restaurant proudly displays bread signed by the 39th president.

A small token of gratitude from freezing cold journalists who were given a warm haven while covering JFK's inauguration.

Home to a vast and influential collection of Shakespeareana.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A wondrous old library overlooking the nation's capital.

The United States Capitol's former columns still stand.

Faces carved into the cliffs create an otherworldly walking trail.

The overgrown remains of an old rail bridge rise above the valley like ancient Greek ruins.

A wonderful and easily overlooked museum tucked in Ohio's Burke Lakefront Airport.

A retro walk through the history of the tube.

These beautiful wineries were at the center of Lake Erie's "grape belt" back when the Midwest dominated American wine production.

The largest ancient burial mound in Ohio.

Deep scars on the earth left by the Ice Age.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

Ruins battered by centuries of war and disaster offer a wondrous glimpse of medieval Ireland.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

The remains of this deep, dark mine have left behind a haunting rocky warren of tunnels.

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."