Very short answer type question:
Who destroyed the temple of Somnath?

Hint: Temple of Somnath is situated in Sagar Kant of Saurashtra in Gujarat. The first temple was built 2000 years ago. The temple has been demolished 17 times in history.

Complete answer: It is said that the temple of Somnath was built by Moon God, the name Somnath also translates to The Moon God. initially, it was made up of gold but later it was reduced to debris and built with silver again by Ravana. The silver temple fell once again and was built of wood by Krishna. The temple has one of the 12 Jyotirlingas of India.
King Maitre of Vallabhini in 649 AD, built a second temple in place of it and renovated it. Then the old ruler of Sindh in 725, took his army and attacked and destroyed the temple. Pratishtha King Nag Bhatt II built the temple again for the third time using sandstone.
It is said that in 1026 AD Mehmud Ghazini looted, sabotaged the temple and left it destroyed. He broke the shivlings and fled with millions of dinar with him.

Note: It is important to keep in mind that after Mehmud Ghazini the temple was built again during 1026-1042 for the fourth time by Solanki Raja Bhimdev and King of Malwa. But it was destroyed again by the Delhi Sultanate in 1299. Then it was destroyed again in 1394, and finally by Aurangzeb in 1706.