Pulling Out All The Stops To Save A 40-Ton, 100-Year-Old World's Fair Pipe Organ

Deep beneath San Francisco's Civic Center Plaza, in a windowless bunker called Brooks Hall, a 40-ton pipe organ gathers dust. Known variously as the Exposition Organ and Opus 500, the century-old instrument was a mechanical and musical wonder when it was unveiled in 1915, the seventh-largest organ in the world.

Today, the organ's 7,500 pipes and countless other parts sit silent and in pieces, packed into boxes and crates spread across 3,600 square feet of concrete, basement floor. To prepare a new site for the instrument, move it, put the thing back together again, and then tune it could cost upwards of $2 million, assuming, of course, you could find a home for the finished instrument.