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

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

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

A wall of chewing gum moonlights as collective art.

A walk through the historic city center, under the streets of Seattle.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

A historic presidential getaway on the continental United States' southernmost island.

The museum chronicling a treasure hunter's dream, fulfilled.

A monument celebrating the idea of reaching inaccessible places.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

Home of the physician who set the leg of John Wilkes Booth after the Lincoln assassination.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

Before Nixon, "watergate" meant canals.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The early data processor factory founded in Washington for the 1890 U.S. Census went on to become IBM.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

An overlooked memorial honoring the local Washington residents who died in World War I.