Provider: - Institution: - Data provided by Europeana Collections- Extended description:- Information:- Varful Toaca or "Shadow pyramid" is an optical phenomenon unique in the world. Around the 6 August morning, shadows of the Varful toaca and Piatra Ciobanului form for over a half hour a hologram as a natural priramide.- Original language summary: Varful Toaca sau “Piramida umbrelor” este un fenomen optic unic in lume. In jurul datei de 6 august dimineata, umbrele varfurilor Toaca si Piatra Ciobanului formeaza timp de peste o ora jumatate o holograma naturala de forma unei priramide.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana