The key to turning shifting dunes into the green oasis of Golden Gate Park.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

A man-made island in scenic San Francisco Bay.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

There must be a pun in this haystack somewhere...

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

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

This private residence was the template for one of the most beloved television homes of all time.

A sharp bend in a dramatic river canyon cut through red rocks.

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

Golden Gate Park's historic collection of plants.

At 207 feet, one of the world's longest continuous escalators.

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

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

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

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

San Francisco's newly reopened hands-on science museum.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of Paul Revere's historic two lantern warning.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

It looks like a whale, it's part of Yale, and it's best-known by a nickname you can probably work out for yourself.

This working class sculpture pounds his hammer all the livelong day.