It’s not just any old amusement park – but it is old. Lakeside Amusement Park was opened back in 1908 on the shores of Lake Rhoda and is still a family-run affair to this day. Take a picnic along and visit the park for one of the most fun things to do in Colorado with kids. Complete with views of the mountains from the tops of the rides, you can try out bumper cars or hit the roller coaster. If you’re travelling with young children, no sweat – there’s even rides for smaller children here too. Then again, visiting this slice of history is a pretty cool experience, no matter what age you are.

Rocky Mountain National Park is arguably the most accessible park in the Western USA, being only a few hours away from Denver. It is also one of the most impressive national parks in the entire nation and receives a boatload of visitors. Spend a day exploring this park, either renting a car to drive the superlative Trail Ridge Road (summer only) or via one of the many trails.
One of the most unmissable things to do in Colorado is to hit up the Rocky Mountains for a spot of hiking. It’s a no-brainer. An hour and a half drive outside of Denver, join one of the many, many trails. We’d recommend Twin Sisters Peak (which is even more reachable if you’re staying in Boulder). It’s quite challenging though and will take pretty much all day.
Why go? Botanical treasure hunting sound like your new thing? Well, here you can peruse thousands of plant species from across the globe, from cacti to rainforest orchids. It’s also a cultural and educational center, regularly hosting art exhibits, plant shows, gardening classes and more. As you explore, be sure to take a breather in view of glass wizard Dale Chihuly’s Colorado, which graces the pond in the Ellipse Garden.
To learn more about the art, history and retail space of the station, as well as the luxury hotel, consider taking a tour. The Crawford Hotel offers tours of Union Station for $20 and the proceeds benefit the hotel's Dollars For Dreams nonprofit partners. The tour culminates at the Terminal Bar for a complimentary drink, so visitors can get the full Union Station experience.
The 16th Street Mall is to Denver what Rodeo Drive is to Los Angeles. This mile-long pedestrian thoroughfare, which stretches across the southern end of the LoDo district and bypasses Larimer Square, is lined with a variety of stores, restaurants and entertainment venues, making it a popular place to visit at nearly all hours of the day (although some travelers note that the area can feel a bit dicey at night, despite a heavy police presence). Even if you're not looking to give your credit card a workout, recent visitors recommend taking a stroll along the 16th Street Mall, as it leads to some excellent people-watching.
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Another big draw is the expansive amphitheater, which has hosted such headliners as the Beatles, Tom Petty and John Denver. You'll soon find (and hear) that the theater – geologically formed by the red rocks – boasts amazing acoustics and an enjoyable atmosphere. But many recent visitors said that no matter the show, the majestic atmosphere makes it a good time. Even if you can't fit a concert into your schedule, many travelers agreed that the theater is worth a stop for the photos alone, while the park's visitor center features displays dedicated to past acts.
Why go? In 1983, a little-known Irish band happened to film a performance at what you might call nature’s own music hall—and the rest, as U2 fans know, is rock history. Of course, it also serves as one of the world’s most breathtaking gyms, where runners get super-sweaty attempting to tackle the seemingly endless staircases and hikers hit the trails through the surrounding 868-acre park. 

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