The Hill of Crosses in Lithuania started during the Soviet era as a sign of resistance to the Soviet regime. Crosses would go up and they would be torn down. It is not a shrine as such, rather a sign of identifying Lithuania as a Christian land. There are no rules, people merely leave a cross, either free standing or nailed or hung over an existing cross. There are thought to be over 200,000 crosses on the hill which is just in a field. Since popes John Paul II and Benedict the XVI both visited the site it has become a bit more of a pilgrimage site.