Largest Roman Catholic church in North America.

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

The resting place of a Civil War celebrity's amputated limb.

Enjoy dishes that founding fathers once ate at this Colonial Williamsburg pub.

Dine like an American revolutionary at Colonial Williamsburg.

This former asylum for Black Americans is haunted by its history of violence and racism.

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

This statue honors the author's groundbreaking family story.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

The world's oldest continuously operating airport was founded by the Wright Brothers.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

The likeness of the Baltimore music icon was unveiled in time for the anniversary of his Senate hearings on music censorship.

An isolated island home to one of the oldest English-speaking communities in the region and Maryland's state dessert.

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

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

An astounding collection of medical specimens, including bits of President Lincoln.

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

Hidden within an idyllic suburban garden is a memorial dedicated to the victims of a terrifying spree of killings committed on U.S. soil.

FDR's Art Deco hospital tower was hopelessly inefficient.

The bridge's highly-contested plaque (once again) honors Confederate President Jefferson Davis.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

An out-of-place Air Force radar dome is all that denotes this park as a former missile launch site.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.