Complex sentence: Since the temple has three shrines, it qualifies as a "trikuta", a three shrined structure though often only the central shrine has a tower while the lateral shrines are virtually hidden by the thick outer walls.
Split into simpler sentences: Since the temple has three shrines, it qualifies as a "trikuta", a three shrined structure. Often in "trikutas", only the central shrine has a tower while the lateral shrines are virtually hidden by the thick outer walls.