The islam worship in a building called the masjid
Qur.An
They are five pillars of Islam faith. They are not materialistic pillars as the building pillars. These pillars of Islam are referred to in question below.
Kaaba is the holiest building in Islam. Kaaba is surrounded by the greatest Mosque in the world. It is called the Grand mosque (or Al-Majid Al-Haram).
The most sacred building in Islam is the Ka'aba situated in Makka, KSA. The Muslims offer their prayers facing Ka'aba. They also visit it to perform Ummra or Hajj.
Islam (apex)
The oldest structure which is now in Islam is undoubtedly the Kaaba (the "Cube") in al-Makkah. It was built, however, not by Muslims, but (probably) by Hindus. Since Muslims have kept it in repair, it could be properly called the oldest building in Islam. ______________________________________________________ The oldest building in Islam is Kaaba in Makkah (or Mecca) in the Kingdom of Saudi Arabia. The Kaaba is narrated that it was built by prophet Adam ans when covered by sands the building was raised again by prophet Abraham and his son prophet Ismael. Hindus were never in this area and never built or participated in building Kaaba, They have nothing to do with it and it is not related at all to their beliefs.
Islam is not pracitced in temples. In fact no religion is practiced in a building. Temple is the place of worship of Hindus. Muslims pray in mosque.
Because they are the basics upon them are based all Islam religion teachings. As removing the pillars of any building results in the building collapse, the deny of any of Islam pillars intentionally and knowingly by any Muslim expels him/her from Islam.
Islam (or rather Moslem citizens and countries) was/were responsible for the building of Baghdad. Everything about Baghdad was influenced by Islamic Principles and Moslem Rulers.
Sa'adih Al-Batawi has written: 'To be the super power country' -- subject(s): Islam and state, Nation-building, Islam
The most significant building in Islam is a Mosque-Kaaba being the Mother of Mosques. Masjid-i-Nabwi in Madina Munawwara and Masjid-i-Aqsa in Jerusalem or also very sacred to the Muslims. All other mosques are also significant.