This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Tetraeder . en Tetraeder Lightart object by Martina Schettina designed fr the Light Art Biennale Austria presented in Langenzersdorf Austria foto taken in public space in Mai de Tetraeder LichtkunstObjekt von Martina Schettina geschaffen fr die Lichtkunst Biennale Austria fotografiert im ffentlichen Raum von Langenzersdorf im