A ADJECTIVE landmark, Ruby Falls is home to the tallest and ADJECTIVE underground NOUN open to the public in COUNTRY . Over half a million PLURAL NOUN visit the ADJECTIVE waterfall annually enjoying PLACE tours, award-winning special events and sweeping views of PLACE from historic Lookout Mountain Tower and Blue NOUN Overlook. Committed to cave conservation and environmental sustainability, Ruby Falls is the first attraction in the United States to earn certification from Green Globe, the internationally respected standard for environmental sustainability. Ruby Falls was honored to receive the PLACE and is recognized as a NOUN in tourism sustainability.
