Yerevan Cascade is just one of the attractions in Kentron, Yerevan so you might want to stop by during your trip. If you want to experience more of the culture Yerevan has to offer, head to Matenadaran, Yerevan Opera Theatre, and Martiros Sarian Museum.
You can make plans for a show at Yerevan Opera Theatre on your trip to Yerevan. Make time to visit the monuments and cathedral while you're in the area.