Coors Field is home of the Colorado Rockies Baseball team and is located in the heart of downtown Denver. Trust me, you can't beat a night game while the sun is setting behind the mountains. Pro tip: buy cheap tickets in the 'rock pile' and head upstairs to the standing Lookout Rooftop inside the stadium for the best views.
Take a Hike! Deer Creek Canyon is a short drive from Highlands Ranch and has hikes ranging from easy-moderate in difficulty. It also has mountain biking trails!