Where is the biggest building in the world?

Answer 1

Imām Reza shrine (Persian: حرم امام رضا‎) in Mashhad, Iran is a complex which contains the mausoleum of Imam Reza, the eighth Imām of Twelver Shi'ites. It is the largest mosque in the world by dimension and the second largest in capacity.

In 818 Imam Reza was murdered by Al-Ma'mun and was buried beside the grave of Harun. After this event this place was called as Mashhad al-Rida (the place of martyrdom of Ali al-Rida). Shias and sunnis started visiting there for pilgrimage of his grave.

Masjid al-Haram ("The Sacred Mosque"), is a large mosque in the city of Mecca, and the largest in Islam. It surrounds the Kaaba, the place which all Muslims turntowards each day in prayer, considered by Muslims to be the holiest place on Earth.

Rest people can check the Related Link below for list of large mosques.

Answer 2

Angkor Wat at Cambodia, built in early 12th century is the first tallest temple tower in Asia. The 2nd largest is Sri Ranganathaswamy Temple located in Tiruchirapalli.

Answer 3

the Burj UL Khlifa is the Biggest Building in Asia. By SPA

Answer 4

it is the moscow building called awnser