The city is full of public artworks, including massive painted tile murals, frescoes, and statuary. Denis used the theme of women in gardens in paintings and decorative murals. It features painted bollards, mosaics and murals. Intricate woodcarving, wall-sized murals and mosaics, and monumental cast bronze gates can also be found. Airbrushes are also suitable for painting murals. Cities were centered on large political and ceremonial structures elaborately decorated with murals and inscriptions. The first "trompe-l'oeil" wall murals imitating perspective views ever seen were on walls at Pella. The Orang Ulu are artistic people with longhouses elaborately decorated with murals and woodcarvings. Images of Venus have been found in domestic murals, mosaics and household shrines ("lararia"). Many of the Hayward Public Art Program murals are located downtown. No two of the more than 1,170 murals painted are the same. Two similar tile murals flanked the entrance corridor. The three center murals depict modern communication. Subsequent damage to these murals, designed by artist Leif Neandross, resulted in reproductions being installed. Anchal contributed to temple wall murals in Kerala.