Red Rocks Amphitheater is one of the most popular concert destinations outside of Denver because of it's unique beauty. There are surrounding hiking trails and definitely a must see depending on how long you will be in Denver.
Larimer Square is located on Larimer Street between 14th and 15th. Probably one of the more high-end places in Denver for shopping, fine dining, and shows.
Union Station is a revitalized historic train station located in downtown Denver with excellent restaurants and bars.
Dairy block is a renovated city block near Coors Field. It has unique places to eat, drink, shop, and look at art.
If you're looking for more of an adventure based experience on your way to Aspen, stop at Glenwood Adventure and book something fun. This was probably the most expensive thing we did on one of our trips but it was well worth it. We did a UTV Razor tour of Bair Ranch, which we got to drive ourselves as fast as we wanted ;) and actually saw a bear. The company offers whitewater rafting, scenic horseback riding, river equipment rentals, sporting clay shooting, and cowboy cookouts.
If you read the details under our travel tab or the back of our invites you'll see Independence Pass is a beautifully scenic (sometimes a little scary) way to get to Aspen. The switchback road goes up and down the cliffside of Independence Pass and the views are breathtaking. Totally worth driving a little slower around all the corners ;)
We don't want to spoil too much for you guys because this is where our ceremony will be held, but it is probably the most popular destination in the Aspen Highlands.
We coincidentally happened upon this event during one of our trips and it will actually be happening the weekend of our wedding from June 5-8. Paid parking is expensive, but street parking is available and entering the event and watching the competitions is completely free (and you can also get a ton of cool free stuff). We watched people professionally white water raft, mountain bike, and slackline all throughout the ski resort grounds. There are many additional competitions that we didn't get a chance to see that include fly fishing, base-jumping, paddle boarding, disc golf, and dog events. There's also live music and free yoga.
Photos don't do this hike justice so we wouldn't feel right putting one here. We would be remised if we didn't put our favorite hike that we've ever done by far, located between Vail and Denver. This hike made us feel feel high without drugs (could've been the elevation). We won't spoil it, but pro tip, once you get to the final trail sign, go farther forward up the closest ridge. That view is one that can't be missed. It feels as if you're on the edge of two worlds. In total the hike is about 9 miles with the added ridge experience ;)
If you'll be spending more time exploring the state, Garden of the Gods is an hour south of Denver and is probably one of the best places to see the unique structures of red rocks found throughout the state. You can do a quick 20-30 minute drive through the whole park and there are plenty of places to pull off and explore hiking trails throughout the rock structures.
Rocky Mountain National Park has some of the country's best hiking trails and is located about an hour and a half north of Denver. The two hikes that we've done are Sky Pond (where we got engaged) and Twin Sisters (much harder than Sky Pond, with a lot of false summits). The hikes are 8.6 and 7.4 miles, both with incredible views and distinctly unique from each other.
If you want to get some ziplining in on your trip, Top of the Rockies has a really cool zip lining trail that sends down a series of six lines starting at 11,000 feet. The guides are really nice and take you up the mountain in an industrious army truck while giving you fun facts about the land. Warning, it could be warm at the bottom, but will likely be snowing at the top in early June.