This turn of the century masterpiece has a mysterious goaty interloper.

A world-class observatory in the California desert.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

This private residence was the template for one of the most beloved television homes of all time.

Secret Manor, a house full of legends, the least of which is the haunting of long-deceased ladies of pleasure.

One of the last free public hot springs is decorated with hippie art.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

A meditative space out of a fantasy story.

A bigger-than-life pun that has become a beacon of altruism.

A ghost town at the airport is now a refuge for blue butterflies.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

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

The largest permanent Monopoly board makes one of the longest games even bigger.

The final resting place of a space program monolith.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Exotic feline breeding compound and conservation center.

The largest drain hole in the world.

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

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

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

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

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

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