Notice requesting visitors to remove their shoes at the entrance to the Hugli Imambara, on the west bank of the Hugli river, West Bengal, India, Asia

Sign at the entrance of the burial mosque requesting strict adherence of the islamic dress code, Qom, Iran

Anti nuclear power demonstration at the Gundremmingen nuclear power plant, the most powerful German nuclear power plant, Gundremmingen in Guenzburg, Bavaria, Germany, Europe

Demonstration of snowmen against climate change on the Schlossplatz in Berlin, Germany, Europe

Demonstration of snowmen against climate change on the Schlossplatz in Berlin, Germany, Europe

Anti nuclear power demonstration at the Gundremmingen nuclear power plant, the most powerful German nuclear power plant, Gundremmingen in Guenzburg, Bavaria, Germany, Europe