Masjid al-Nabawi; Medina, Saudi Arabia - second-holiest site in Islam

Al-Aqsa Mosque; Jerusalem, Israel - third-holiest site in Islam

Umayyad Mosque; Damascus, Syria

Imam Ali Mosque; Najaf, Iraq - holy site in Shi'a Islam

Faisal Mosque; Islamabad, Pakistan - largest mosque in the world

Badshahi Masjid; Lahore, Pakistan - largest Mughul empire mosque

Mezquita; Córdoba, Spain

Hagia Sophia; Istanbul, Turkey

Sultan Ahmed Mosque (Blue Mosque); Istanbul, Turkey - built across from the Hagia Sophia
