Due to neighboring structures in the vicinity or other geographical constraints, it has occasionally been hard to build a church with the altar facing East for a variety of reasons. Since Vatican II in the 1960s, most Roman Catholic churches have been constructed in the round, bringing the Mass closer to the people. Also, because of the increasing number of North American Catholics who are Eastern Orthodox or Protestant, some churches are now being built with an all-purpose room and not specifically as a church. But even before Vatican II, many Catholic churches were not built with their altars facing east because of practical considerations or the influence of local bishops. For example, the altar of a Spanish church would usually be facing west because that is where the sun rises. However, this was not always the case: early churches were often built without any orientation rules since there was no need for marking which direction was north or south. Nowadays, the majority of Catholic churches do have their main altar facing east because it is the traditional location of Jesus' crucifixion and his resurrection both on Good Friday and Easter Sunday. However, many older churches may have had their altars facing west because that is what was done in ancient Rome. The current pope always celebrates Mass facing east so it is best to check the directions of the altar and priest when visiting a church for the first time. Eastern Orthodox churches also face east during worship services but they are generally not dedicated exclusively to Christ.