There's nothing on Earth that's freer than our feathered friends -- especially when viewed from behind a desk and an office window. Flip gravity the bird with today's deal from Zip Chicago: Pay $149 (regularly $298) for a guided zipline tour for two, or spend $298 (regularly $596) for a guided zip line tour for four. Migrate to this Marseilles adventure spot, where you'll learn the ins and outs of your safety equipment before taking off on your two-hour tour by ziplining from the side of the company building. Along the way, you'll traverse six different cables at heights of up to 85 feet off the ground, reaching speeds of up to 45 miles per hour without any motorized machines to propel you. With two 75-foot suspension bridges offering additional expansive views of the river valley below, this guided canopy tour will help you spread your wings.