Trolltunga

A slab of Precambrian gneiss that juts horizontally from the mountainside 1,126 metres up, with about 700 metres of air beneath it and the lake Ringedalsvatnet below that. Glacial meltwater froze in the mountain’s crevices at the end of the last ice age, roughly 10,000 years ago, and levered away the blocks that left this shape; deep cracks are still working along the cliff. Getting there is a 27-kilometre round trip from Skjeggedal with 1,100 metres of ascent, ten to twelve hours over rough ground with no shelter and nowhere to buy anything. Fewer than 800 people came in 2010; over 80,000 came in 2016.