Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

Paths are maintained, but trees have taken over plots.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

A stack of stones steeped in Irish folklore, much like the hero they're connected to, hide in plain sight.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

The final resting place of the Seminole Indian chief who fought against government occupation in Florida.

A former department store turned into a quirky restaurant.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

A reproduction of earth's many biomes.

The world's largest military aircraft cemetery.

The first Protestant church in Arizona and only Gothic Revival style adobe church in the world.

A mistaken marker makes an erroneous claim along the historic Old Divide Road.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A spiritual vortex among the red rocks in Sedona.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

Piled high inside this warehouse and coffee shop are salvaged goods that span every corner of the globe.

This 16-foot-diameter wooden coin has been standing in Iowa City since 2006.

An enormous artwork that colorfully celebrates over 150 years of US military achievements.

Deco Modern sculptures of the people of the Pacific, cast for the 1939 Golden Gate International Exposition.

A man-made island in scenic San Francisco Bay.