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

San Francisco’s condensed garden of incredible plant growth.

The oldest lawn bowling club in the United States.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

An overlooked and unassuming engineering marvel.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

The restored and active Victorian-era final resting place of San Francisco.

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

Half of a house.

27-room home built with the fortune of a sugar magnate.

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

A quiet nook at the top of a little-known hilltop park named after California's first poet laureate.

Small Nevada town embraced its designation as the "Armpit of America" with an Old Spice-sponsored festival.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

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

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.