They have six petals (strictly, three petals and three very similar sepals), arranged symmetrically, giving rise to the name star-lily.

In contrast to many other narrow gauge routes, the pipe couplings were arranged symmetrically on the vehicles.

Most diplomonads are double cells: they have two nuclei, each with four associated flagella, arranged symmetrically about the body's main axis.

It has two floors and a simple plan, with rooms arranged symmetrically about a central hallway.

Adjacent to the main building are two other buildings arranged symmetrically on a single plane.