One of Mexico's rare urban natural parks features waterfalls and a working fish farm.

Peaceful gardens hide an underground torture museum.

Mexico's astounding mummy museum with "the world's smallest mummy."

A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

One poet's handmade, anachronistic home.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

More than 700 species live within this murky marvel of a swamp on California's coast.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

For almost 100 years, this site of peace and spirituality has existed on the California coast.

The southernmost outpost of the Russian Empire in colonial America.

A trash dump made beautiful by nature's power.

This massive redwood tree has a hole in the base big enough to drive through.

An optical illusion found amid a logged redwood forest.

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

Quite simply the largest tree in the world (by volume).

Rushing water plunges over a 100-foot drop created by an ancient lava flow at this majestic waterfall.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

Fifty years after a “blast blasted blubber beyond all believable bounds,” this idyllic natural area commemorates the carnage.

The longest continuous lava tube in Oregon.

This great stone guardian of the forest is a relic from the land's volatile volcanic past.