http://99percentinvisible.org/episode/making-up-ground/
On May 3rd, 1978, construction workers in San Francisco were digging a foundation for a new building on Sansome Street, right next to the Transamerica Pyramid in the heart of the financial district. About 20 feet below street-level their shovels hit something totally unexpected. It was the hull of an old boat.
This podcast is about manufacturing land.
