These massive mitts are made of 30 tons of devotional bronze.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

A gleaming white tower in ornate Indian style soars above the low-slung bungalows of north Tampa.

A humid oasis combines recreation with exploration in a unique underwater cavern.

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

A vision of beautiful Hindu architecture in the middle of the American South.

Bad farming practices caused this unnatural natural wonder.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

This historic mansion was built as a symbol of love between a husband and wife.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

This free, take-a-book shop seems like a trick but isn't.

The drama of nature in full effect in this Nevada State Park.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

Visit this playground of waterfalls, caves and sinkholes.

Moonbows over Kentucky.

A hollow cement depiction of time's inexorable effect on the human body.

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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A wall of chewing gum moonlights as collective art.