Early Medieval stones sit on display at the beautiful Govan Old Church in Glasgow.

Glasgow’s piece of the patron saint of love.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

When it opened during the final years of the embargo, all the drinks and cigars were free.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The oldest house in Washington, D.C. wasn't originally constructed in the nation's capital.

An amazing example of early-20th-century architecture, this church features marble transported from Utah.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

A derelict bit of transportation infrastructure hidden in the woods.

One of the oldest train stations still standing in Virginia played a vital role during the Civil War.

The most historic church in Fairfax County played a role in the creation of the American Red Cross.

A lone historical marker off the highway and scattered debris are all that remain of this Cold War-era missile site.

A graveyard that dates back over 200 years stands near a busy shopping center.

The wooded estate of the Forest Service employee responsible for D.C.’s cherry blossom trees.

Proto-CIA agents trained with grenades in the sand traps and fired machine guns from the fairways.

She stares out across six lanes of traffic, clutching a musket and infant with determination.

This massive swimming pool is the high tech home to the human-powered submarine races.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

The U.S. government built the million-pound stack of steel during the Space Race.

This golfball sized platinum iridium cylinder is the official starting point for all national weight calibrations

Tiny observatory made big contributions to the study of the Earth's motion.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

An allegorical sculpture in Maryland wears the artist’s politics on its trunk.