Mecca is the holiest city in Islam and is located in Saudi Arabia. It is the birthplace of the Prophet Muhammad and is home to the Kaaba, a cube-shaped building that is the most sacred site in Islam.

Hajj is the annual pilgrimage to Mecca that is required of all able-bodied Muslims at least once in their lifetime. It is one of the five pillars of Islam.

Jerusalem is considered the holiest site in Christianity as it is the site of Jesus' crucifixion and resurrection. It is also home to many important Christian sites, including the Church of the Holy Sepulchre and the Western Wall.

There is no specific name for the annual pilgrimage to Jerusalem in Christianity, but it is a common practice for Christians to visit the city to see the holy sites.

Bodh Gaya is considered the holiest site in Buddhism as it is the place where Siddhartha Gautama, the founder of Buddhism, attained enlightenment.

There is no specific name for the annual pilgrimage to Bodh Gaya in Buddhism, but it is a common practice for Buddhists to visit the city to see the holy sites.

Varanasi is considered the holiest site in Hinduism as it is located on the banks of the Ganges River, which is considered sacred in Hinduism.

There is no specific name for the annual pilgrimage to Varanasi in Hinduism, but it is a common practice for Hindus to visit the city to see the holy sites.

Amritsar is considered the holiest site in Sikhism as it is the location of the Golden Temple, which is the holiest shrine in Sikhism.

There is no specific name for the annual pilgrimage to Amritsar in Sikhism, but it is a common practice for Sikhs to visit the city to see the holy sites.

Palitana is considered the holiest site in Jainism as it is home to a cluster of 863 Jain temples on Shatrunjaya Hill.

There is no specific name for the annual pilgrimage to Palitana in Jainism, but it is a common practice for Jains to visit the city to see the holy sites.

Acre is considered the holiest site in Baha'i Faith as it is the location of the Shrine of Baha'u'llah, the founder of the Baha'i Faith.

There is no specific name for the annual pilgrimage to Acre in Baha'i Faith, but it is a common practice for Baha'is to visit the city to see the holy sites.

Yazd is considered the holiest site in Zoroastrianism as it is home to the Zoroastrian fire temple, which is the holiest shrine in Zoroastrianism.

There is no specific name for the annual pilgrimage to Yazd in Zoroastrianism, but it is a common practice for Zoroastrians to visit the city to see the holy sites.