When ecosystems collide in the arid Southwest.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

Golden Gate Park's historic collection of plants.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

A 19th-century cabin built into a hollowed-out Sequoia tree.

Four hundred granite steps were built into this massive rock by the National Park Service.

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

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

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

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

A massive sea stack famous for its appearance in The Goonies.

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

Rimmed by white crusts of salt on every edge, Lac Assal is one of the saltiest bodies of water in the world.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

A community gathering place that once housed half-ton tanks and the World's Fair.

Over 75 historically themed murals grace the walls of a small Washington city.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

Stroll through a wonderland of stupendous moss-covered trees.

A walk through the historic city center, under the streets of Seattle.

Oldest building in California still in use.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A winged-helmed, sword-brandishing tribute to German Americans.

One of the world's premier laboratories for hydraulic engineering research takes full advantage of the water's power.