The Illyrians were conquered by the Romans, who left roads, bridges, and beautiful villas with mosaics all over Bosnia and Herzegovina. The best preserved examples are at Mogorjelo near Čapljina and the mosaics at Stolac (dating from the 3rd century). The Christian basilica are found throughout the country (Zenica, Visoko, Mostar, Široki Brijeg ... ), and their carved stone stonework influenced the first original medieval Bosnian art, found on tombstones – stećak.