First planned industrial community in the United States.

A collection of colorful dinosaurs hidden in an actual rainforest.

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

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

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

Enormous lake at the bottom of a unique cave system.

A trash dump made beautiful by nature's power.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

An emerald-green grotto just a short trip from Austin.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This hilltop warren of monastic dwellings is the result of centuries worth of Mongol attacks.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

This giant steer-skull edifice refuses to die.

A Saint Nicholas-themed ghost town in the Mojave desert.

A popular winter vacation destination for migrating monarch butterflies.

This glamorous old building is said to have inspired the Tower of Terror.

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

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

This unique competition celebrates an American Indian and Canadian First Nation cultural tradition.

Brawny guys rolling around in oil is the oldest regular sporting event besides the Olympics.

Two churches shoot bottle rockets at each others' bell towers in an unusual Easter celebration.