A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Olfactory delights in San Francisco's Botanical Gardens.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Over 315,000 preserved amphibians and reptiles in jars.

An overlooked and unassuming engineering marvel.

An enormous artwork that colorfully celebrates over 150 years of US military achievements.

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

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

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

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

Elevated freight railway turned wildly successful urban park.

The oldest lawn bowling club in the United States.

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

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.

A shining, cold, black organ lies in San Francisco's financial district.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

Guns that have been defending San Francisco since 1904.