This massive oak tree has ties to the first native tribes of the region and the founders of Texas.

A small, forgotten prison cemetery marked only by a wrought-iron fence and eerie depressions left in the ground.

The oddly shaped, steam-spewing building is now an art studio and gallery.

This small pedestal marks the spot of the first lot of land sold in Alexandria, Virginia in 1749.

This one-room schoolhouse was revitalized in 2007 as a museum focusing on the education of Black children during the early 20th-century.

The sole surviving building from Newgate village, a colonial settlement that was renamed Centreville in 1792 after it was granted town status by the Virginia Assembly.

The only museum outside of Australia dedicated to exhibiting the artwork of Indigenous Australian artists.

The only surviving 19th-century water-powered mill found in the Washington, D.C. area.

Get up close and personal at this Fresnel Lens.

The most historic church in Fairfax County played a role in the creation of the American Red Cross.

These massive concrete balls were used to mine gold in Virginia.

Extraordinary objects lurk in this quintessential regional museum.

Herbert Hoover's "Brown House" rural presidential retreat was a PR disaster amid the start of the Great Depression.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

A bunker "with enough U.S. currency to replenish the cash supply east of the Mississippi" in the event of nuclear war now protects nitrate film.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

Volcanic stone sentinels stand watch at a Korean Bell Garden in Virginia.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

A cement mixer-turned-kaleidoscope in downtown Norfolk offers different views of the city.

One of the last active volcanoes on the Eastern seaboard.

This historic mansion was built as a symbol of love between a husband and wife.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.