A mosque, also called a masjid, is a place of worship for Muslims. The term usually refers to a covered building, but can be any place where Islamic prayers are performed, such as an outdoor courtyard.
Aerial view of the Sacred Mosque (Al-Masjid Al-Ḥarām) of Mecca in Saudi Arabia, the largest mosque and holiest site in Islam, with the Kaaba in the center (2010 photo)
The Prophet's Mosque (al-Masjid an-Nabawi) in Medina, Islam's second holiest site
Masjid al-Qiblatayn (Mosque of the two Qiblahs) in Medina
The Al-Aqsa Mosque in Jerusalem, Islam's third holiest site
A place of worship is a specially designed structure or space where individuals or a group of people such as a congregation come to perform acts of devotion, veneration, or religious study. A building constructed or used for this purpose is sometimes called a house of worship. Temples, churches, mosques, and synagogues are examples of structures created for worship. A monastery may serve both to house those belonging to religious orders and as a place of worship for visitors. Natural or topographical features may also serve as places of worship, and are considered holy or sacrosanct in some religions; the rituals associated with the Ganges river are an example in Hinduism.
A Baháʼí House of Worship in Wilmette, United States
Pura Besakih is a Hindu temple in Bali, Indonesia
Wat Kanlayanamit is a Wat or Buddhist temple in Bangkok, Thailand
Great Synagogue of Plzeň is a Jewish synagogue in Plzeň, Czech Republic