Hello how may I help you? I need some facts about cities Sure, what would you like to know? What is the tallest building in Denver, Colorado Sure, let me look that up for you... The tallest building in Denver is the Republis Plaza How tall is the Republis Plaze plaza 714 feet high Really? Has anyone ever tried to climb it? like a daredevil Jeff Sobolik climbed the building in 1987 I thought someone must have! Thanks Is there anything else you would like to know? No, that will be all for today