Not far from Amsterdam's famous Anne Frank House is a small museum devoted to far more psychedelic matters.
On entering the basement exhibit visitors are surrounded by bulbous, otherworldly shapes creating a fully-immersive environment straight out of a Love Generation fever dream. When the black light comes on, the home-made shapes spring to life as every surface glows with a neon phosphorescence. Patrons are encouraged to explore the psychedelic space at their own pace, taking part in what the owners call "participatory art". While the main attraction is the experiential room, the museum also features a large collection of rocks and other elements that naturally react to UV light. The glass case full of dull gray stones explodes with flecks of electric color under the black light. The collection also contains various ephemera related to fluorescence such as vintage black light play-sets and
informational displays.