Hello how may I help you? Can you help me find the tallest building in Denver, Colorado? Sure, I can help you with that information.... Great! The tallest building in Denver is called the Republis Plaze How tall is it? That building is 714 feet tall! Thats super tall! It is, but not compared to some of the other tall buildings of the world. Is there anything else I can help you with today? No thanks1 Have a great evening! You too