This legendary urban waterfall creates a dazzling display of rainbows.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

Watch the newest land on the planet form before your eyes.

These ancient sacred grounds granted amnesty to those who managed to reach them.

This black shoreline is made up of exploded lava particles.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

The South's nickname was supposedly born at a former bank in New Orleans' French Quarter.

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 small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

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

This Art Deco airport was once deemed “the air hub of the Americas.”

This strange, small castle on the bayou has withstood the test of time and weather.

This Mississippi seminary was the first in America to train Black Catholic priests.

A brick-lined alley full of public artwork tucked away in downtown Gulfport.

Built following the War of 1812, this fort has withstood hurricanes for centuries.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

A seven-ton black granite monument dedicated to the memory of those who died and those who lived through the 1977 crash of the popular Southern rock band.

This racially troublesome eatery thought a new coat of paint could erase its offensive connotations.

A grandiose octagonal home crowned by a large dome stands out among the antebellum mansions.

A 200-year-old bar is all that remains of one Mississippi River town's rough-and-tumble past.