This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

Historic home of America's sweetheart sharpshooter, Annie Oakley.

Once America's tallest structure, now a Baltimore landmark.

Parking garage where Bob Woodward met Watergate source "Deep Throat."

It’s not hard to see why the historic Peabody Conservatory of Music’s library has been described as a “cathedral of books.”

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

A star fort along the C&O Canal in western Maryland that protected America in three wars.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This grand gothic brewery has been pumping out suds for over a hundred years.

A former major munitions plant that has been converted into a sprawling art space.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

The site of the climactic scene from the classic horror film is now a historic landmark.

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

A Civil War Museum with some notable medical antiques.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

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

The site where Poe “in great distress, and ... in need of immediate assistance” likely died.

The trials and tribulations of marking Poe’s grave.