The Obake Kaidan, located in Tokyo’s Nezu district, is an invisible stairway that has perplexed visitors for centuries. It features an eerie 40 steps on the way up, but only 39 on the way down! This strange phenomenon has inspired countless urban legends, from tales of grave stones beneath its steps to unexplained deaths when counted on the way down. Despite the many stories, the truth behind the staircase is much simpler: the first step on the bottom is so flat that it blends seamlessly with the ground and is hard to notice. Despite the mystery surrounding it, Obake Kaidan remains a fascinating site to visit and explore. Visitors can observe the unusually uneven steps and the mysterious atmosphere as they explore the abnormality of this grand staircase.