The "gestation" was a shaded avenue where the master of the house could ride horseback or be carried by his slaves. It generally encircled the ambulation or was constructed as a separate oval-shaped space. Paths or walkways were often constructed through the garden. These were made with loose stone, gravel, sand, or packed earth. Gardens featured many ornamental objects, from sculpture to frescoes to sundials. These depicted nature scenes or were put in place as a shrine ("aedicula") to the gods or otherworldly creatures.