From Tombstone:
http://www.tombstonechamber.co...
Various sites claim it covers 8,000 - 9,000 square feet. It's been years since I've been there but it covered an entire city block at that time. Apparently, it has a rival in England, the Kiftsgate Rose.
http://www.kiftsgate.co.uk/kif...
Dan, I do believe it's your turn!