Hi V ... The annual Open House Melbourne event occurred on the last weekend in July. Some 100 city buildings were unlocked and visitors were permitted inside. it was a marvelous event allowing the public free entry into to many city buildings including some areas not usually accessible. Above is the queue for the tour of Parliament House. Although it looks a bit daunting on these angled steps it moved quickly. The interior of the building was spectacular. Tours run year round when parliament is not sitting. Cheers J.