Outdoor amphitheaters are open-air venues designed for performances, concerts, and events. They typically feature tiered seating that allows audiences to enjoy the view and acoustics of the stage. These structures can be found in parks, gardens, and other natural settings, providing a scenic backdrop for various activities. Many outdoor amphitheaters host a range of events, from music festivals to theatrical performances. They often utilize natural materials and landscapes to enhance the experience. Notable examples include the Hollywood Bowl in California and the Red Rocks Amphitheatre in Colorado, both known for their unique settings and excellent sound quality.