"The Bahá'í World Centre buildings comprise both the Bahá'í holy places used for pilgrimage and the international administrative bodies of the Bahá'í Faith" - link
Iran hates the Bahai and have routed them. The Ayatollahs view them as competitors with pervy prophet's cult.
All the more reason for them to be rocketing Haifa. IMHO that has to be one of the more beautiful buildings in the world.