The U.S. Air Force Academy just north of Colorado Springs is one of the Pikes Peak region’s top attractions. It’s particularly popular with summer visitors, and much of it is accessible when classes are not in session. And it’s FREE. The visitors’ center is open 9 a.m.-5 p.m. daily, except major holidays, and includes a film, a museum and gift shop. Take a short nature walk and visit the world-famous Cadet Chapel. For more on visiting the academy, go online.