Toyota Elephant Passage, which was rechristened after a $5.4 million donation from seven local Toyota dealerships, will be groundbreaking when it opens on June 1. As explained in our 2009 feature, "Trunk Show," it will be capable of housing up to twelve elephants, eight of which could be male. No other zoo in North America has the capacity to house that many bull elephants.

Look below to see photos of Groucho arriving in Denver.