According to a 2010 study by the Pew Research Center, 76.2% of the European population identified themselves as Christians. However, there is a realistic gap between cultural Christians and religious Christians, and this is the main reason why many churches are practically empty without worshipers (except a few days in a year such as Christmas). There are many reason why churches became unpopular destination for most people (except foreign tourists). The financial and sexual corruptions of Catholic church, judicial injustice of government that protects corruptions of Catholic church, materialistic secularism of modern society, implementing or enforcing social diversity (which means, encouraging Islam) of progressive politics, taxing people for being a Christian (case of Germany and Austria), and boring old way of church service are the main reasons. It is very obvious that nobody will like Churches when people see cases of child sexual abuse by Catholic priests, nuns and members of religious orders have been widespread and have led to many allegations, investigations, trials and convictions, as well as revelations about decades of attempts by the Church to cover up reported incidents.
About 70% of Church revenues (mostly Catholic in reality) come from Church tax (Kirchensteuer), also called Worship tax (Kultussteuer) in Germany, and every recognized religious group in Austria can collect church tax at a rate of 1.1%, though currently only the Catholic Church makes use of that opportunity. Church tax is compulsory for Catholics in Austria. This tax was introduced by Adolf Hitler in 1939 in exchange with Vatican’s political supports for the Nazi regime. Even after World War II, the tax is still retained. As 2010 Catholics were the largest Christian group in Europe, accounting for more than 48% of European Christians. The second-largest Christian group in Europe were the Orthodox, who made up 32% of European Christians. About 19% of European Christians were part of the Protestant tradition. Russia is the largest Christian country in Europe by population, followed by Germany and Italy. The photographs of Churches underneath have been taken in France (Paris, Lyon, Annecy, Yvoire), Germany (Dusseldorf, Cologne, Frankfurt), Netherlands (Amsterdam), and Israel (Nazareth, Jerusalem).