Photo: Jeffrey Beall, CC BY 4.0 via Wikimedia Commons
An eclectic but unique museum south of town, with thousands of large insects collected by John May from around the tropics.
May Natural History Museum is an entomology museum in Rock Creek Park, Colorado. The museum describes its holdings as the world's largest private insect collection. The museum's insects and arachnids were collected by amateur naturalist James May from 1903 until his death in 1956; the museum was founded by his son, John May, in 1952.
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A small, scenic mountain zoo with many exotic animals.
A privately owned series of falls and nature trails. Fills up quickly on weekends, but you can instead visit neighboring Helen Hunt Falls.
A short hike to some great views, within North Cheyenne Cañon City Park.