Hello how may I help you? Greetings. Can you help me with facts from Denver, Colorado please Sure, what facts do you need? I want to know the tallest building there The tallest building in Denver, CO is the Republis Plaza. How tall is that building? 415 meters, 30 stories. Where's it located? The building is located downtown on First Street and Mountain Ave. Okay thank you for the help You're welcome.