"The only replacement for a DC-3 is another DC-3."

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

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

Built in 1859, this eagle-topped archway marks the entrance to Brigham Young’s property.

A fully functional, commercial, miniature art gallery.

Pay a visit to America's oldest yarn shop.

Chewing gum tycoon's memorial lies perched over wife's botanical gardens on Santa Catalina Island.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

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

What began as a prominent Burning Man art piece is now an iconic symbol of downtown Reno.

An iconic 1960s theater with a Buckminster Fuller-style geodesic dome.

Bill Murray bowled three straight strikes here at Reno's "Taj Mahal of Tenpins."

Pyramid home to an obscure religious group that practices modern mummification.

This large, castle-like structure is hidden amid the mountains on the grounds of the Utah State Hospital.

An increasingly eccentric apartment building, topped with winged beasties.

A three-story, three-dimensional hobo clown in a tutu welcomes CVS shoppers.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

The sun acts as a key that only fits this giant keyhole twice a year.

This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

Sit at the "Disney table,” where Walt and his team of "imagineers" once dined on the regular.

Next to Salt Lake City's Assembly Hall stands a tribute to some unlikely heroes of early Mormon settlers.

This beloved roadside attraction welcomes visitors with his signature neon smile.

Visitors to this library are in for a real-world education in modernist architecture.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.