This striking building near Minami-Ikebukuro Park piques the interest of many passersby. Created by the architect Bon Juko, also known as the 'Japanese Gaudi', the building doubles as an art installation that can be loosely translated as 'Hiraki: Philosopher's Stone'.
While currently used as an office, it was once a residence, and the entrance to the building still retains its original form. Visitors can explore this mysterious space brimming with life. On the first floor, there's a standing izakaya bar called Tachinomiya Kihei, perfect for a quick toast before heading home.
It's important to note that eating and drinking is not allowed in the entrance area. Visitors are also asked to refrain from littering, smoking or defacing the building in any way.