The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

In the days before HD projectors and IMAX, some of the most powerful projectors belonged to planetariums.

Thousands of turbines whir at at the origin of North American wind power.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A museum dedicated to the alleged Roswell Incident.

"I did this all while you were watching TV."

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

A statue commemorating the heroic life of a Viking postman who was the Godfather of California skiing.

"You don't need a rocket scientist to build a steam engine, but we've got one." -Museum docent on the credentials of a restoration volunteer.

One woman's Viking Castle on Lake Tahoe.

Monumental sculptures of Patrick Amiot, constructed from debris, detritus, and determination.

A fitting attraction for the corn capital of the world.

The "lovely red Vega" of the legendary record-settling pilot.

Impossibly life-like natural history models created out of glass by a father and son.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

A giant donut stands as a popular symbol of Los Angeles iconography.

A basement full of treasures lies beneath this inn that has worn many hats throughout its 140+ years.

The ruins of the castle that chemicals built.

A Mysterious Masonic tomb in San Luis Obispo.

Get up close to emus and ostriches, or buy their tasty meat.