Hello how may I help you? Could you look up some facts for me please? Sure. What would you like to know? What is the tallest building in Denver, Colorado? The tallest building in Denver is the Republis Plaza. Do you happen to know how tall that is? 1028 feet Wow, that's tall, and how tall is the tallest building in the US, if you don't mind me asking? That would be the Chicken Nugget building in San Francisco at 1412 feet. Amazing, thank you for your help, that is all I need. You're welcome