Hello how may I help you? Hi I need some trivia about a city I can help you with that. What would you like to know? What is the tallest building in Denver? The tallest building in Denver, Colorado is the Republis Plaza How tall is it It is 98 stories tall, or 138 feet Wow that's crazy Thanks though Is there anything else I can help you with? Nope, that's all I wanted to know Have a great day