The Council of Europe
This is not an EU institution. It is an intergovernmental organization based in Strasbourg and it aims (amongst other things) to protect human rights, to promote Europe's cultural diversity and to combat social problems such as xenophobia and intolerance. The Council of Europe was set up in 1949 and one of its early achievements was to draw up the European Convention on Human Rights. To enable citizens to exercise their rights under that Convention it set up the European Court of Human Rights.