Scenic World in Katoomba, Blue Mountains is a leading Australian tourist attraction, hosting over 27 million visitors over the past 70 years. They offer 5 attractions: Scenic Railway the steepest passenger railway in the world, Scenic World Top Station overlooking Jamison Valley, Scenic Skyway is the largest aerial cable car in the Southern Hemisphere, Scenic Cableway descends through the valleys and the Scenic Walkway is the longest elevated rainforest boardwalk in Australia. Book passes online.