We love a good factory or “insiders” tour, not only because they’re usually FREE, but because you walk away with a little more knowledge…and possibly some samples. (Yes, we’re talking about you, MillerCoors, Stranahan’s Colorado Whiskey and Celestial Seasonings!) They’re a great way for visitors to spend a few hours getting to know the Mile High City, but can also be just as enjoyable for locals. The days and hours of tour schedules vary, so check first before making plans. Unless noted, no reservations are required. Remember, tours are very popular during the spring and summer months, so be prepared to wait. Walk this way and review our 14 Free & Cheap Fun Tours in Denver page for more details.