As the center of the Roman Catholic Church, Vatican City receives millions of visitors annually who come to see St. Peter's Basilica
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Mecca is the holiest city in Islam, and Masjid al-Haram, with the Kaaba inside, is the most sacred mosque.
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Medina is the second holiest city in Islam, and Al-Masjid an-Nabawi (the Prophet's Mosque) is a major pilgrimage site where the Prophet Muhammad is buried.
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The Western Wall is a holy site in Judaism, and the Church of the Holy Sepulchre is revered by Christians as the site of Jesus' crucifixion and resurrection.
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Lourdes is a major Catholic pilgrimage site where it is believed that the Virgin Mary appeared to a young girl, Bernadette Soubirous, in 1858.
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Varanasi is one of the oldest continuously inhabited cities in the world and a major center for Hinduism.
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It attracts millions of visitors from all over the world, both Sikhs and people of other faiths.
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The Mahabodhi Temple complex is a UNESCO World Heritage site and a pilgrimage destination for Buddhists.
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