Candi refers to a structure based on the Indian type of single-celled shrine, with a pyramidal tower above it, and a portico. The term Candi is given as a prefix to the many temple-mountains in Indonesia, built as a representation of the Cosmic Mount Meru, an epitome of the universe. However, the term also applied to many non-religious structures dated from the same period, such as gapura (gates), petirtaan (pools) and some of habitation complexes. Examples of non-temple candis are the Bajang Ratu and Wringin Lawang gates of Majapahit. The Candi Tikus bathing pool in Trowulan and Jalatunda in Penanggungan slopes, as well as the remnants of non-religious habitation and urban structures such as Ratu Boko and some of Trowulan city ruins, are also considered candi.