The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

Oldest building in California still in use.

A world-class observatory in the California desert.

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

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

The oldest standing structure in downtown San Diego.

These two K-9 memorials commemorate the sister cities of Edinburgh and San Diego.

The Giant Lemon of Lemon Grove.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

North America's largest accredited model railroad museum.

A hidden courtyard houses early 20th-century plaster masterpieces.

This historic Chinese church was relocated and revived as a museum that preserves and celebrates Chinese art, history, and culture.

The Gaslamp District's oldest bar sports a urinal marked with a golden plaque that was allegedly used by Mick Jagger.

This now-abandoned shopping center in Playa del Carmen was built to resemble a medieval European castle.

It might look like a doghouse, but this small structure was actually built to house a spirit from Maya mythology.

A small site dedicated to the memory of a local leader and the search for peace.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

An indigenous take on European design creates a stunning visual overload.

The only castle in North America to ever house European sovereigns.