Diga di Luzzone is considered to be the Everest of wall climbing. The 540-foot artificial structure is the tallest vertical climbing wall in the world. It is actually part of the functioning Luzzone dam, but while it was never built for climbing thrill-seekers around the world have made it their own.

Access to the Diga di Luzzone costs about 20 CHF, which is quite cheap. The cost includes a ladder that you can use to gain the first 20 ft. right up to the holds of the first pitch. There are five pitches in total – each one long enough for you to feel the weight of the rope as you clip the higher bolts.

Via Oddity Central.