Once the supplier for noteworthy projects like the National Cathedral, this old brickworks now lies abandoned.

Rumor has it the hot dog stand was targeted by two Russian nuclear missiles.

This giant, rotating globe was built to celebrate the expansion of a company that makes steam cleaners and pressure washers.

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

An out-of-the-way wildlife haven with a rich and storied past of harboring thousands of fugitive slaves, or "Maroons" during the mid 1800s.

Historic barracks utilized during both the Revolutionary War and the Civil War.

According to local history, this cast-iron canine was nearly melted down for bullets during the Civil War.

A Civil War Museum with some notable medical antiques.

Open day and night, a church with three pews and Bibles.

Two islands just 4 km apart separated by an International Border and Date Line.

This museum sits on the site of a decommissioned military communications base.

A wonderland of caves in eastern Iowa.

This museum-within-a-museum pays tribute to "The World's Most Experienced Airline."

See four top-secret US spy aircraft of the Cold War era, including the legendary SR-71 Blackbird and the A-12 Oxcart.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

How did a 2,000-year-old Roman column find its way to a Chicago park?

This Civil War monument was designed by an eccentric architect and Gettysburg veteran.

A converted hangar displays dozens of helicopters, from a famous 1943 rescue chopper to several autogyros.

This bridge over D.C.'s Rock Creek Park is sometimes called the "Buffalo Bridge" because of its four buffalo sculptures, which were cast from a single piece of bronze.

The story behind this beloved toy—named for Theodore Roosevelt and owned by his grandson—is more complicated than you might guess.

The third-tallest lighthouse in the United States stands as a reminder of Atlantic City's early days.

The hippo that stands on this university campus was once a drunken flea market purchase.

A priceless collection of the Nation's cryptologic history.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.