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

San Francisco’s condensed garden of incredible plant growth.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

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

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

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

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

Perfect your fly fishing technique on their practice ponds.

Furniture tries to escape an abandoned building in San Francisco.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

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

One of few lasting examples of the brief octagon craze that developed into folly.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A huge musical instrument played by the ocean.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Monumental sculptures of Patrick Amiot, constructed from debris, detritus, and determination.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

This historic mansion was built as a symbol of love between a husband and wife.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

One street divides a single town that stands in two U.S. states.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Scattered throughout London are ancient remnants of the city's former bounding wall.