Hidden in the Vondelpark, under the bridge where three trams rumble above, there is an old nuclear shelter from the year of 1947. In 1968, the area was given a new meaning and became the first Amsterdam youth center opened: Beatkelder Lijn 3. Now, a sanctuary is located in the shelter: the Vondelbunker. The Vondelbunker is leased by foundation Zero and is used for exhibitions, film and discussion evenings and other creative and/or activist projects.