There's something big lurking beneath the surface of this tiny Oregon park.

Sweden's southernmost prehistoric rock art is hidden just outside Gothenburg.

The crumbling remains of Juneau's explosives storage site.

The ruins of this Alaska gold mine form a gorgeous ghost town.

In the Mound Hill Cemetery resides the final resting place of the world's tallest couple.

A small collection of iguana-infested ruins hides amid Cancún's bustling hotel zone.

These red and black houses were awarded to the firefighters who saved their city from an enormous blaze.

Invading U.S. troops were first seen from this now-abandoned tower, leading to the Spanish-American War.

A resilient tree that has survived for more than 700 years in Guánica Dry Forest.

With over 5,000 champions, the Hall of Fame continues to draw amateur eaters.

This observatory comes complete with three separate telescopes and a dedicated community of amateur and expert astronomers.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

This is the last hand-cranked chain ferry of its kind in operation in the United States.

On the shores of Lake Kalamazoo, a plaque marks a fictional event where an island nation ran aground.

Outside Hope College in Holland, Michigan, a marker honors a University without people from the fictional Kcymaerxthaereal times.

The park is home to the United States's only still-operating Dutch windmill.

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

This vessel is believed to be the oldest operating fireboat in the world.

Buffalo's abandoned concrete grain elevators are getting a second life.

The tombstone epitaph of Millicent Milroy commemorates her "marriage" to King Edward VIII, Duke of Windsor.

This building's metal facade is the last of its kind in all of Canada.

The nude sculpture on this fountain shocked conservative townsfolk when it was first unveiled, but not as much as the dead body found in it decades later.

A 1975 bylaw prohibits the construction of any building that would block the view of this Gothic Revival church.

One of the last remaining covered bridges in the province of Ontario.