A steel skeleton is all that exists of what is supposed to be a replica of Noah's Ark

An 1830s street scene and roadside relics trace the country’s first great highway

Remnants of a storybook amusement park hidden behind a strip mall.

The home and final resting place of the first native-born American saint

Once an exclusive hunting club for U.S. presidents, now a wildlife conservation area.

This is the last surviving Bollman truss bridge in the world.

A well-preserved quarry and six of eight continuous burning pot kilns used to make burnt lime and crushed stone are highlights of the self-guided walking tour in Fountain Rock Park.

Take a trip to the past aboard a 1920s railcar or open flatcar for a scenic ride through Maryland farm country.

Rumors persist that a bottle of whiskey is sealed within this Demijohn-shaped adornment.

This is the cabin from which John Brown and his men launched their fateful war to end slavery on October 16, 1859.

Near the state border, cars seem to defy the laws of physics by rolling uphill.

A charming tour of the umbrella, tin-can, and drinking-straw capital of the world.

Once damaged by Hurricane Agnes, this bridge is now on the National Register of Historic Places.

At the birthplace of American railroading, a world-class collection of historic trains.

The first blast furnace in the United States that used coal and coke fuel instead of charcoal to make pig iron.

The smallest covered bridge in Maryland.

This hidden treasure provides a charming access point along the south side of Baker Park.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

Unannounced visitors are now welcome at the site of the largest Prohibition-era bootlegging operation in the region.

The hidden ruins of a mill that is linked to an attempt to assassinate the vice president of the United States.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

An eerie, decaying ghost town destined to fade into the forest.

This family-run roadside motel is an ode to the mid-century motor era.