Spectacular volcanic cliffs along the Crooked River invite hiking, rock climbing, and photography.

A beautiful 62-acre Catholic shrine and botanical garden.

This striking arch, one of the first architectural elements constructed in Prospect Park, was recently restored to its original glory.

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This tiny patch of arid sand sits in one of the greenest states in the United States.

An underground magnet for ever-changing street art.

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.

An abandoned coal mine reached by a steep hike.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The world's largest fully steerable radio telescope.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

Home to items never before seen by the public.

The "lovely red Vega" of the legendary record-settling pilot.

The 28,000-year-old specimen is remarkably intact.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

A museum dedicated to exhibiting remarkable outsider art.

So many migrating birds roost on the bridge, it has a special summer speed limit.

The world-record holder for the longest bridge stretching continuously over water.

A short but powerful waterfall resides amid Colorado’s Great Sand Dunes.

When ecosystems collide in the arid Southwest.