Built for an exposition in 1915, these horticultural displays have stood the test of time.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

An inconspicuous footbridge beloved by San Diego locals.

This large round boulder is said to emit spiritual power, but it may just be magnets.

This was once the center of the Birdman cult, and is now a World Heritage Site.

This small island off the coast of Uruguay hosts the largest colony of sea lions and fur seals in the southern hemisphere.

This wonderful rock formation constitutes the first geopark in Uruguay.

Of the many Jesuit missions in South America, this complex is one of the best preserved.

An underexplored, 130-foot tropical waterfall that you will have all to yourself.

Massive rock sculptures formed during the time of the dinosaurs still stand undisturbed.

Mysterious and ancient carved standing stones.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A mountain range on an active U.S. Navy base hides thousands of mysterious prehistoric rock carvings.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

This park was designated by UNESCO as an Endangered World Heritage site.

An island made out of shells, including a cemetery.

This deceptively salty lake looks like blushing pink lemonade.

Despite a fraught and controversial history this African island holds a powerful monument to the tragedy of the slave trade.

While it is not equipped to peer into outer space this observatory looks like it was built on the moon.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

Unknown to many, this sparkling turquoise lake hides amid Oregon's snowcapped mountains.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

On the Oregon coast there is a natural hole that seems to be draining the sea.