This sprawling oasis of green in the middle of the city has a vast collection of beautiful flora.

Jog (or stroll) down an esplanade of fluctuating and whimsical sculpture works.

This is the last surviving Bollman truss bridge in the world.

After emancipation, former slaves paved the roads of their newly built settlement with these bricks.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

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

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

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

This striking Victorian Home with its 113-foot turret is best known as the site where abolitionist John Brown was executed in 1859.

One of America's oldest continuously operating hotels offers a blend of rich history and historic architecture in the heart of Annapolis.

This statue honors the author's groundbreaking family story.

A mural honoring two trailblazing Supreme Court Justices—Thurgood Marshall and Ruth Bader Ginsburg.

A pair of whimsical homes in Texas shaped like oversized Western wear.

The world's largest secondhand book market is a haven for bibliophiles and bargain hunters.

This is one really big nut.

More than 21,000 images fill this overlooked gem of a prehistoric site.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This small park features a monumental fountain wall, providing a great photo opportunity in the middle of Houston.

Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

A starship has landed in Texas, a welcome break for weary travelers from a drab stretch of I-35.

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.

This former Texas landfill is flush with 300 million-year-old fossils, all fit for the taking.