The Denver Botanic Gardens' 24 acres feature a whopping 50 gardens for visitors to explore. This expansive facility in downtown Denver's Cheesman Park treats travelers to a variety of different environments, from a traditional Japanese garden (complete with bonsai trees) to the South African Plaza blooming with exotic plants like asparagus fern and torch lilies. Meanwhile, art aficionados will also appreciate the gardens thanks to the numerous sculptures that grace the grounds; the facility also plays host to touring exhibits that have included works by such artists as Stephen Talasnik and Dale Chihuly.
Dating back to well to almost 1,000 years ago, the cliff dwellings at Mesa Verde National Park represents some of the best-preserved of their kind. In fact, they’re the best preserved in all of North America. Who built them? The Puebloans did, indigenous people of this region of the Americas who constructed the stunning cliff-based buildings back in the 1190s AD. These have been given names like Balcony House, and Cliff Palace, which has 150 rooms. For one of the most interesting things to do in Colorado, ranger-led tours can (and should – trust us) be arranged before your visit.
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.

The International Church of Cannabis is one thing, but the Cathedral Basilica of the Immaculate Conception is another level entirely. Conceived in the mid-19th century and finished by 1911 and costing a cool half a million dollars, this impressive cathedral is a pretty impressive place to visit. It’s the kind of thing you might expect, well, not in the USA, but here it is in all its Catholic glory.
You’ve been to a craft weed producer. You’ve learned all there is to know about how their gardens grow here. So now you should visit the International Church of Cannabis – and yes, that exists. Visiting this place has got to be one of the most unique things to do in Colorado. Unoccupied for a few years until 2017 when it was reopened as a church for so-called “Elevationism“.
That’s right: the Georgetown Loop Railroad takes you out of the city on a narrow gauge railway, along and across Clear Creek, for some prime mountain views on a history-laden steam train, complete with vintage carriages to match. Any sort of person wanting to soak up the past of this area will enjoy this one, but if you’re a train fan… this day trip in Colorado is going to make your head explode. In a good way.

Begin your Colorado trip in Denver – that’s the best base, we’d say – by learning about the history in the capital of Colorado itself. The sights here date back to the Old West era and a good place to start is Union Station: it’s not just a transit hub, it’s a vibrant landmark in itself with loads going on. Feels (looks) like Europe. From here walk 10 minutes to the oldest part of the city, Larimer Square.
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. 
It’s not every day you get to go see how actual money gets made, so why not head on over to Denver Mint? And thankfully the only cash involved is the stuff you’ll see being made: you have to part with anything because it’s free. It ain’t just about money though – it’s history. Dating back to 1792, Denver Mint is the sole manufacturer of all those dimes and dollars in your pocket. That’s a huge claim to fame and makes it easily one of the most interesting, and most unusual, things to do in Colorado. If you’re a history fan, or if you’re looking for stuff to do in Denver when it’s raining, this is a must.
With its excellent views of the Rocky Mountains, miles of hiking trails and cinnamon-hued sandstone cliffs, Red Rocks Park is a big draw for outdoors enthusiasts. Occupying 700-some acres, this impressive park offers visitors the opportunity to experience the fascinating geographic transition between the Great Plains and the Rocky Mountains. If you only have a short amount of time here, stretch your legs along the Trading Post Trail; this nearly 1 ½-mile-long path weaves through the rust-colored buttes, making for some spectacular scenery. Before you head out, travelers recommend stopping by the visitor center, which features information on the parks history and trails.
A great way to get an adrenaline rush and a great vista without having to climb up the side of a sheer cliff face is ziplining. It’s one of our most favourite things. Colorado isn’t short of places to get your fill of this sport (is it a sport?). Pretty epic, and one of the best adventurous things to do in Colorado. Head on over to Manitou Springs for a collection (5 to be exact) of some awesome ziplines strung out over the foothills at the bottom of the famous Pike’s Peak. Some of these ziplines are over 600ft long, which is perfect for all you adrenaline junkies out there.
The International Church of Cannabis is one thing, but the Cathedral Basilica of the Immaculate Conception is another level entirely. Conceived in the mid-19th century and finished by 1911 and costing a cool half a million dollars, this impressive cathedral is a pretty impressive place to visit. It’s the kind of thing you might expect, well, not in the USA, but here it is in all its Catholic glory.
That’s right: the Georgetown Loop Railroad takes you out of the city on a narrow gauge railway, along and across Clear Creek, for some prime mountain views on a history-laden steam train, complete with vintage carriages to match. Any sort of person wanting to soak up the past of this area will enjoy this one, but if you’re a train fan… this day trip in Colorado is going to make your head explode. In a good way.
With galleries showcasing more than 70,000 works by famed artists such as Vincent Van Gogh and Winslow Homer, the Denver Art Museum houses one of the most impressive collections of art between Chicago and the West Coast. Spread across two buildings, the museum's holdings range from pre-Columbian artifacts to contemporary displays with such mediums as painting  and sculpture represented. One of the highlights of a visit to the Denver Art Museum is its extensive assembly of western American art, which includes paintings, sculptures and works on paper related to the West going back two centuries.
No, we’re not suggesting you hop on a train and leave town, Denver’s Union Station is a popular tourist attraction in itself. The station building first opened in 1881 and has since undergone major renovations to become the beautiful structure it is today. Along with a historic terminal building, the station also features a grand hotel and several restaurants and retailers.
Since you’ve been hiking, you’ll be sweaty. Take a shower then head out again for a bit of glamour at Peaks Lounge at the Hyatt Regency. This isn’t just a fancy dinner and drinks situation because you’ll mainly be here for the views. They are litrerally amazing. Come for sunset and watch the city light up as you sip cocktails. Not the cheapest thing to do in Denver, but definitely worth that skyline vista.
It might not be the cheapest thing to do in Colorado, but heading up to the Peaks Lounge at the top of the Hyatt Regency is definitely one of the best things to do in Denver at night. The view from up here on the 27th floor of the Hyatt building offers up an immense vista of the city skyline. Have cocktails as the sunsets and watch the buildings of Denver begin to glitter in an urban light show that you really should capture to show off just where you are and what you’re doing. To top it all off, Peaks Lounge has great service (as it should) and an awesome ambience. Definitely one of the best things to do in Colorado for couples, actually.
Ok, so maybe you’ve partaken in some of Colorado’s cannabis culture, maybe you haven’t, but trust us: you do not need to be high to experience this modern marvel. Fifty-Two 80’s is a shop that’s dedicated wholeheartedly to 1980s Saturday morning cartoon culture, amongst other things. It’s a place to come and relive childhood memories in a cave of ’80s memorabilia.
Denverites don't hesitate to praise their beloved Washington Park, comparing it to Boston Common or New York City's Central Park. You can get to Washington Park from the downtown area by hopping on the E light rail line.  You are welcome to visit Washington Park at any time of day or night, and there's no entry fee; however, different facilities within the park adhere to their own hours of operation and may charge admission. For more information, visit the Washington Park website.
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