What is the oldest surviving Islamic building?

Answer 1

Al-Masjid Al-Haram around Kaba (in the nowadays country the kingdom of Saudi Arabia) is the oldest mosque in the world. However, the oldest mosque that Muslims prayed in with prophet Muhammad (peace upon him) is called "Al-Masjid Zu Al-Keblatine" where Muslims prayed first facing to Al-Alaqsa Mosque and the facing Kaba.

Answer 2

In Makkah (or Mecca) in the Kingdom of Saudi Arabia.

It is called the Quba Mosque, Saudi Arabia.

First Built: 622.

The designation of the oldest mosque in the world requires careful use of definitions, and must be divided into two parts, the oldest in the sense of oldest surviving building, and the oldest in the sense of oldest mosque congregation. Even here, there is the distinction between old mosque buildings that have been in continuous use as mosques, and those that have been converted to other purposes; and between buildings that have been in continuous use as mosques and those that were shuttered for many decades. In terms of congregations, they are distinguished between early established congregations that have been in continuous existence, and early congregations that ceased to exist (wikipedia).

Answer 3

It has been reported that there now are fewer than 20 structures remaining in Mecca that date back to the time of Muhammad.

However the most important building (that actually predated the Prophet Muhammad) is the Kaaba.

Answer 4

Masjid Al Haram ,Ibrahim and his son Ismael built it its in Makkah

Answer 5

It is Kaaba in the current country called Kingdom of Saudi Arabia