A trail weaves through the verses of a poem illustrated by stone sculptures inspired by Native American pictographs.

A toxic ghost town sitting atop a massive coal fire.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

An exquisite tunnel of cascading flowers.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

The mysterious round rocks of Schooner Gulch.

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

A 300-ship graveyard, with a few still visible at low tide.

A playing field for a popular French past time can be found tucked away in a quiet corner of Golden Gate Park.

Approximately 250,000 people left homeless by the great earthquake and fires found shelter in Golden Gate Park.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

A monument to the love people have for their pets.

Thirteen trees representing the original thirteen colonies were planted with soil from historic Revolutionary battlefields.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Olfactory delights in San Francisco's Botanical Gardens.

A hidden subterranean installation offers a view of the sky.

A quiet marker in memory of local men and women lost in WWI.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

The oldest lawn bowling club in the United States.

A huge musical instrument played by the ocean.