Viator.com

"While the upside down loops are blocked off, the curvy staircase offers visitors captivating views of the Rhine, with the highest stair rising to 49 yards above sea level."

""Stairway to the Sky" - From the last step, visitors can look out at the entire garden before descending back down."

"There are exactly 999 steps leading up to a temple. The latest addition to the mountain is the “sky walk”, which allows tourists to look down at the massive hole below from clear glass flooring."

"Due to the steep climb and slippery terrain, a maximum of 400 climbers are permitted per day. If hiking during the rainy season, be prepared for thick fog and muddy conditions."

"From the bottom of the steps, a person sees only steps but once he reaches the top and looks down, the steps are invisible, leaving him with a view of just the landings."

"It totals 250 steps covered in tiles collected from countries around the world."