An Iwan is a large, vaulted chamber with a monumental arched opening on one side. In architecture, a vault is an arched structure of masonry, forming a ceiling or canopy. ... Politics—see Chambers of parliament Firearms—see Chamber (weaponry) Heart chamber Combustion chamber Marvel Comics —see Chamber (comics) The Chamber was a short-lived game show on FOX. The Chamber is a suspense novel by John Grisham. ... A monument is a structure built for commemorative or symbolic reasons rather than for any overtly functional use. ... Simple arch bridge Close-up of a semi-circular arch in Barcelona, Spain. ...

One of the most famous incarnations of the Iwan is at the Friday Mosque in Isfahan, Iran. Indeed, it has become a common element of Islamic architecture. Isfahan or Esfahan can refer to either a city or a province in Iran: Isfahan (city) Isfahan (province) Isfahan (rugs) Ispahan a kind of rose and an older pronounciation of the citys name. ...