This massive redwood tree has a hole in the base big enough to drive through.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Canyon walls shrouded in ferns.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

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

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Lebanese castle built by one man, over a lifetime.

Today's aerospace industry can be traced back to one man and his gliders.

The oldest house in the capital of Silicon Valley.

It took years to decode its mysterious messages.

This restaurant's marvelous musical machines include a self-playing violin.

An extensive collection of ancient Egyptian artifacts and mummies.

A pair of pure white felines guard the entrance to a spot of California real estate established as an artist's haven.

Because there's no place like home.

Instead of hoofing it up steep stairs, residents can hitch a ride on this private lift.

A quirky collection of figurines backdropped by city views is hidden next to a popular restaurant in the Hollywood hills.

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.

The so-called "Father of Las Vegas" had the city's first telephone installed in his office in 1907.

A luxurious doomsday bunker hidden beneath an unassuming Las Vegas home offers the best of subterranean suburbia.

Wayne Newton's sprawling estate is now open for visitors to catch a glimpse of his "heart and soul."

An exotic wildlife habitat right off The Strip.

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

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

Nevada's largest cactus collection stands outside a candy mogul's small factory.