Drawings were done on stone
Answer:
The Romans constructed aqueducts throughout their Republic and later Empire, to bring water from outside sources into cities and towns. ... Aqueducts moved water through gravity alone, along a slight overall downward gradient within conduits of stone, brick, or concrete; the steeper the gradient, the faster the flow.
Christian art is generally created as an expression of what the church may believe. Since there are several different types of Christianity, or branches under the large name, the church the artist goes to, or whatever religious ideas the artist has will be portrayed in his artwork. Christian art is made to support their ideas and religion, as well as give people a sort of image to look up to. After all, nobody truly knows how God looks.
