Fátima, Portugal
Marian apparitions are also responsible for tens of millions of Christian pilgrimages worldwide. The Sanctuary of Our Lady of Fátima, in Cova da Iria, Fátima, Portugal, became the most visited sanctuaries in the world with between 14 and 18 million pilgrims per year, for this reason Fátima is often compared to Mecca in terms of pilgrims that visit the holy site in May and October.