Al Sadiq Mosque, Chicago, Illinois
America’s oldest mosque was established by a missionary of the Ahmadiyya sect of Islam, Mufti Muhammad Sadiq in 1922 as part of the mission’s new U.S. headquarters in Chicago.

A picture in the movement’s journal, The Muslim Sunrise, reveals it was first known as the “Ahmadia Moslem Mosque and Mission House,” and sat inside a modest two-story building with a bay window that had a large dome and two thin, spindle-like faux minarets on it. Today a small, sand-colored mosque with a pointed roof and two green minarets sits on the same spot. The name Al Sadiq, which means “honest” or “faithful,” is probably a nod to the founder.