An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

This massive oak tree has ties to the first native tribes of the region and the founders of Texas.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

What is the Thing?

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

This Balinese sea temple is thought to be guarded by the hundreds of monkeys that live around it.

Hindu temple of the dead home to hundreds of long-tailed macaques.

Five miles of underground river link lake to ocean.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The longest continuous lava tube in Oregon.

A sculpture of a salmon swimming through a brick building.

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

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

This strange example of the Egyptian Revival architecture trend now holds Mardi Gras floats.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

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

A museum and shop on Bourbon Street located in the French Quarter.