Denver has an amazingly diverse collection of sights to see and things to do. What other city has a big blue bear? Or a city park that's not in the city but is arguably one of the best venues on the continent for concerts? That's the case with Red Rocks Park & Amphitheatre, a one-of-a-kind natural amphitheater and one of Denver's true gems of an attraction. The city is known for its environmentally focused initiatives, which include Denver B-Cycle, the shared bike program that gives residents and visitors a cool way to get around town without a car. For those who don't want to do the research and planning it takes to create a tour of their own, Denver has excellent ready-made tours that are anything but ordinary. Banjo Billy's Bus Tours take the concept of bus tours to a completely different place, and the Denver Microbrew Tour gives visitors insight into how and why Denver has become the epicenter of craft brewing in North America. And although there are four U.S. Mints in the country, only two offer public tours and the U.S. Mint in Denver is one of them. Add historic structures, such as Denver Union Station, museums and the Denver Zoo in City Park, where it's possible to see elephants moseying against a backdrop of the Denver skyline and Rocky Mountain peaks. Who doesn't want to see that? Well, maybe not everyone. But then, those folks can see Denver exactly the way they want to, and that's fine, too.