Open House Melbourne (OHM) is an event held in Melbourne, Victoria, Australia that showcases many of the city's buildings to the public. This annual event is held on the last weekend in July since 2008. The inaugural Open House Melbourne 2008 event saw 8 buildings open and more than 30,000 visits across the day. Since then, the event has grown and the 2010 event expanded to 59 buildings, incorporating Docklands in addition to Melbourne’s CBD, and attracted almost 65,000 visitors. In the 2011 event 75 buildings opened their doors and attracted 100,000visitors.