Gastown's most famous (though nowhere near oldest) landmark is the steam-powered clock on the corner of Cambie and Water Street. It was built in 1977 to cover a steam grate, part of Vancouver's distributed steam heating system, as a way to harness the steam and to prevent street people from sleeping on the spot in cold weather. Its original design was faulty and it had to be powered by electricity after a breakdown. The steam mechanism was completely restored with the financial support of local businesses as it had become a major tourist attraction, and is promoted as a heritage feature although it is of modern invention.