Trolltunga

A horizontal rock formation jutting out 700 meters above Lake Ringedalsvatnet in Norway's Hardanger region, Trolltunga demands a grueling 27-kilometer round-trip hike taking 8-12 hours, yet the reward is a photo that outperforms every other post you'll ever make—30% more likely to go viral than the average landscape shot on Instagram. Queue times at the rock can exceed two hours in summer, and Norway had to build a permanent ranger station after multiple rescues of unprepared influencers attempting the hike in sandals. This makes it more demanding than #1 Antelope Canyon, which requires only a guided tour.