Sure, Mount Rushmore is impressive, but a mere 15 miles away, an even more impressive monument is in the works...and has been for 66 years. When completed, it's slated to be the world's biggest sculpture; but it's far from being finished. When the statue, which depicts Oglala Lakota warrior Crazy Horse, is done, it'll stand 563 feet tall and 641 feet wide. Japanese Garden Zen, Indian Arts And Crafts, Roadtrippers, Breathtaking Places, Sturgis, World's Biggest