Denver in 3 days: Denver Art Museum (Daniel Libeskind 2006 titanium crystalline cube — the most Native American art in any US museum), 16th Street Mall free MallRide shuttle, Larimer Square (oldest block in Denver — Victorian commercial strip 1858), RiNo Arts District (the most mural-dense warehouse arts district in the Mountain West — Great Divide Yeti Imperial Stout), Denver Union Station (Beaux-Arts 1914 restored 2014 — 22 bars and restaurants), Red Rocks Amphitheatre free morning hike (700-million-year-old sandstone monoliths — the most beautiful outdoor concert venue on Earth at 1,966m), Rocky Mountain National Park (Trail Ridge Road — highest paved US national park road at 3,713m, elk rut September–October), Colorado State Capitol (13th step brass marker = exactly 1 mile / 5,280 ft), Confluence Park (Cherry Creek + South Platte confluence — the exact gold discovery spot 1858), Denver Museum of Nature and Science (most complete Stegosaurus skeleton in the world) and farewell Colorado prime ribeye steakhouse.