The Sheraton Atlanta Hotel in downtown Atlanta has finished work on a $20 million capital improvement project, it announced last week.Part of $70 million worth of enhancements made to the property during the last several years, the latest project included energy-efficient makeovers of all 765 guest rooms, which now feature new bedding, 37-inch flat-screen TVs, new furnishings and the latest guest room keycard entry system, not to mention guest bathrooms featuring new granite vanities, new chrome fixtures, energy-efficient lighting and new dual-flush commodes that reduce water usage by 30 percent.Also updated were Club level rooms and executive suites, which were outfitted with new 42-inch LCD flat-screen TVs, and 108 rooms overlooking downtown Atlanta's Ellis and Piedmont Roads, which have been expanded by 60 square feet.Along with 90,000 square feet of contiguous meeting space, the Sheraton Atlanta Hotel features three on-site restaurants, a martini bar, a 24-hour fitness center, a full-service business center, in-room dining and high-speed wireless Internet access.