This study includes the general characteristics of the Gardens of Islamic Civilizations, their general similarities and differences with the gardens of different cultures, and the prominent gardens in Islamic Civilizations. Some of the gardens in Spain are Alcazar, Alhambra, The Grand Mosque, Medina Azahara. Those in Iran include Chehel Sotoun, Fin Garden, The Garden of the Throne, Shah Lake Garden. Some of the gardens in India include Ram Garden, Nishat Garden, Taj Mahal, Shalimar Garden, while some examples in Turkey are Ottoman and Seljuk monuments such as the Istanbul palaces (Topkapi, Yildiz, Uskudar) and Alanya Hasbahçe. In addition to the philosophy of religion, climate and geographical features, intercultural interaction are the most effective characteristics involved in the development of the gardens of Islamic civilizations. As Islam has been in interaction with a wide range of cultures in a vast geography, the gardens were influenced by them, but have nonetheless preserved their characteristic qualities for centuries. Humankind has been trying to reach and achieve beauty for centuries. Thus, the fact that gardens are considered reflections of heaven on earth has led to a human desire to be able to combine beauty and aesthetics in this area. The Islamic understanding introduced new spiritual values to horticulture. Thus, leading to the development of magnificent, grand masterpieces close to the depiction of heaven.