COLORADO SPRINGS — To call The Broadmoor a hotel is like calling the Taj Mahal a building. The swank landmark resort, owned by Denver billionaire Philip Anschutz, is an experience to be savored, as you would a first-rate aged brandy — rich, sweet, complex. The Broadmoor, which will mark its centennial June 29, emanates old world elegance with its pink-stucco Italianate Renaissance buildings ringing 10-acre Cheyenne Lake at the foot of craggy Cheyenne Mountain.