The first partially complete dinosaur skeleton was discovered here, forever changing the world's view of the ruling reptiles.

The fifth-longest natural arch in the world, and the longest outside China.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

The only place for a truly presidential dram.

This sparsely populated town offers a look back in time.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

The bizarre story of the mysterious death and hidden treasure of one of Sanibel Island's early homesteaders.

The house where the writer spent his formative years.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

The ruins of a medieval monastery named after a type of tree.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

Home to a timed geyser created by complete accident.

This quirky museum celebrates the history of a local cod fishing industry.

Unlike most arches, this geological oddity formed in a volcanic dike.

Its columns were all carved from the same white oak tree.

The first transatlantic wireless signal was received at this 17th-century fort.

This historic lighthouse has been reincarnated as the perfect picnic place.

This engineering marvel is the longest bridge in Canada and one of the longest spans in the world.

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

More than 50,000 gannets claim the cliffs of Bonaventure Island.

The sculpture's largest spire points directly toward the North Star.

The state bird of New Mexico, constructed entirely out of garbage.