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

One of the only memorials dedicated to journalists who died in combat.

Built by the patriotic residents of Boonsboro in a single day.

Bizarre Cavern.

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

The final resting place of a physician rescued during the bombardment of Fort McHenry.

This methodist cemetery is slowly receding into the wilderness along a Maryland highway.

Home of the physician who set the leg of John Wilkes Booth after the Lincoln assassination.

A state park that once served as an important river crossing, and now offers protected lands for endangered plants and animals.

One of the earliest and best-preserved buildings in Charles County, Maryland.

The rock on which Moll Dyer was found frozen to death is said to still bear her handprint.

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

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

The longest-covered bridge in the state of Maryland.

A rural colonial settlement that contains the remains of a store and cooper.

This historic lighthouse was well known for the large number of women who served as its keeper.

One of the oldest surviving Swedish-American homes in the United States.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

This collection of odd proofs of concept is like taking a walk through the imagination of a Victorian engineer.

The longest covered bridge in Delaware.

The tombstone of the founder of the lost town of Ogletown is now stuck inside a traffic median.

A scenic fort on the harbor protected Philadelphia from an attack that never came.