The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

A clone of a cloned tree that was so important it allegedly had its own guards.

A small token of gratitude from freezing cold journalists who were given a warm haven while covering JFK's inauguration.

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.

The rogue roots are gradually consuming some of the historic marble grave markers.

The perfect place to take a family of giants for a beach vacation.

Eighteenth century house of the mysterious "Father of Raleigh."

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

This small museum dedicated to the painful memory of segregation is essentially a time capsule.

Human skulls and a stuffed goat made into a rocking chair can be found at this strange little store.

More than 500 unique and specially designed cases collected by D.C.'s "Harmonica Case Man."

A historic arena where the Beatles played their first concert in the U.S.

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

Oldest existing wire suspension bridge in the United States.

Whimsical artist house in the New Jersey woods.

This quaint New Jersey graveyard is an eternal resting place for thousands of beloved pets.