Chaityas are Buddhist shrines or prayer halls that evolved from places of rest and meditation. The earliest chaityas date back to the 3rd century BCE. Chaityas have distinct architectural features including a dome representing the universe, drums below the dome, and finials atop 13 tiers symbolizing the path to enlightenment. Over time, chaityas grew more elaborate with the addition of niches containing figures of the four Buddhas and ornamentation. Licchavi period votive chaityas from the 5th-8th century AD typically had a monolithic stone design with three sections: a dome, drum, and finial.