The biggest solar telescope in the world helps reveal the secrets of our sun.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

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

A "haunted" landmark on the coast of Southern California.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

Just like the real 36th president of the United States, animatronic LBJ amuses visitors with jokes and stories.

Over 100 million years ago, beach-bound dinosaurs left permanent marks on San Antonio's landscape.

This failed condo development was reborn as a street art hub.

Decaying military base deactivated in the 70s is now visited by urban explorers and military enthusiasts.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

The site of Paul Revere's historic two lantern warning.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

A Nesting Doll of Churches.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Three prestigious academic collections come together to create a world-class natural history museum.

The highest bridge in America was built for an almost unnervingly small amount of money.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Breathtaking and huge 430 year old maps of Italy.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

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

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.