Condemned US Navy seaplane control tower turned officers’ club sits atop Yerba Buena Island.

A whimsical antique shop with a strong air of mystery, filled with items from ages, and what feels like worlds, past.

The first AIDS memorial chapel in San Francisco and one of only a few in the U.S.

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

The miraculous hydrant that saved the Mission District in 1906.

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

An overlooked and unassuming engineering marvel.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

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

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

66,000 pieces of art, donated by one of the world's richest men.

During its heyday, the massive estate boasted its own railroad station and post office.

The winter home of millions of migrating monarch butterflies.

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

You'll never meet anyone this passionate about elephant droppings.

This elephant kraal is the only one remaining in Thailand, dating back to the 16th century when these massive mammals were integral players in war and trade.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

An enormous dragon scales the walls of this 17-story temple.

Eighty million natural history specimens call this gargantuan museum home.

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

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

A memorial to the thousands of political dissidents imprisoned during the 38-year period of martial law in Taiwan.