Perfect your fly fishing technique on their practice ponds.

A monumental cross hides in the trees in Golden Gate Park.

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

The legendary statue-hating superintendent of Golden Gate Park is honored with... a statue.

The oldest lawn bowling club in the United States.

Art in the form of a winding, man made crack in stone.

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

Over 315,000 preserved amphibians and reptiles in jars.

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

Barely visible foundations remain where Stow Lake’s “observatory” once welcomed visitors.

Olfactory delights in San Francisco's Botanical Gardens.

The remains of a 12th-century chapter house in Golden Gate Park.

California's most comprehensive horticultural library.

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

9,000 square feet of vintage and modern mechanical toys, dioramas & sideshow curiosities.

A creepy steel gremlin has protected the Bay Bridge since 1989.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.

This (occupied) house is 10 feet wide and full of spite.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

A reclusive Memphis neighborhood is home to decades worth of misunderstood Masonic folk art.

An art collective teaching the more fiery, metal-y art forms.

Odd stone and concrete monuments in the "Poet of the Sierras" eclectic folly garden.

A crumbling Beaux Arts monument to the Bay Area's age of rail.