The Westin Riverfront Resort & Spa in Avon, Colorado, opened in September 2008, and is the first luxury resort in the state to achieve LEED certification from the U.S. Green Building Council. The eco-friendly design contains elements such as recycled-tire roofing tiles, native plant landscaping, and low exterior lighting that helps keep the Milky Way looking bright. But perhaps the most interesting part of this green plan is the use of a gondola as public transportation, taking guests from the Eagle River right up to the base of Beaver Creek Mountain. Imagine — a luxury resort without a fleet of Escalades.