A mosque is a place of worship for followers of the Islamic faith. The primary purpose of the mosque is to serve as a place where Muslims can come together for prayer. Mosques are widely recognized for their importance in the Muslim community and in Islamic architecture. They have evolved significantly from the open-air spaces of the Quba Mosque and Masjid al-Nabawi of the 7th century, and most modern mosques have elaborate domes, minarets, and prayer halls. Mosques originated on the Arabian Peninsula, but can now be found on all six inhabited continents. They are not only places for worship and prayer, but also places for believers to interact and to learn about Islam. Other faiths' places of worship, such as synagogues and churches, have often been converted into mosques.