Odd outsider art installations surround a Gold Rush-era ghost town.

Water of undetermined depth has attracted rare fish and cult leaders alike.

This enormous fiberglass cow near Death Valley National Park once graced a casino roof in Las Vegas.

This giant temperature attraction created some giant electric bills.

This outdoor observatory offers stellar views and a scale model of our solar system.

The site of the first "historically true" UFO encounter in the U.S.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

This abandoned neighborhood is now a park filled with beautiful trees, wildflowers, and hints of its past.

This sprawling 18th-century cemetery features unique and beautiful gravestones, including one shaped like a tree.

Resonating tubes make music from highway overpass.

Time travel with sweets across history at this research-based candy store.

Now the final resting place of prominent artists and musicians, it was originally founded to separate the rich from the poor in death.

Visitors come from all over to bring gifts and tokens to the grave of Alice, who is thought to have died of a broken heart.

This sound-art installation features songs composed using only the Mid-Hudson Bridge as an instrument.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

A short but powerful waterfall resides amid Colorado’s Great Sand Dunes.

When ecosystems collide in the arid Southwest.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The world's longest known cave system.

This 19th-century building inadvertently preserved the handprints of its builders within its walls.