A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

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

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

These old doors are covered in the signatures of Rehoboth Beach artists dating back to the 1930s.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

WWII-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers. .

A desiccated merman and a walrus penis bone are among the oddities in this eclectic collection of shipwreck treasures.

The historic home still shows the scars from a little run-in with the British in 1813.

A wrecked ship dating back to the American Revolution was only recently discovered off the Delaware coast.

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

A Maryland museum dedicated to Black history, housed in a historic church.

Its diverse collection of computers and technology spans the ages.

One of the largest collections of Catalan literature and cultural materials outside of Spain, created by a community of 1960s expats.

A historic cemetery filled with quirky faux wood art and unique tombstones.

The United States' oldest Episcopal church still in active use.

This 1830s store is believed to be the site of Harriet Tubman's first stand.

Maryland's first (and last standing) toll house on America's first federal road established the state as the "Gateway to the West."

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

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

The development and impact of electronic media showcased in a picturesque farmhouse in Maryland.

A benevolent, 16-foot-tall river dragon lives on a suburban lawn.

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