An excavator cleans up debris from demolition at the former Treasure Chest Building near Main Street and First Avenue Northwest. In all, three buildings are being removed. A small one was brought down Friday where yellow tape can be seen. The building at left has had its rear removed, and the Treasure Chest building itself, which stretches the width of the block, is coming down in stages. All three buildings had long been vacant and are being torn down for safety concerns.