1.   One theory suggests that personality can be viewed as a series of concentric rings.

2.   Spaced evenly from the bottom up, concentric rings of black crow feathers rise to the top of the cairn.

3.   The largest craters show, in addition to their rim walls and central peak structures, outer concentric rings of mountains.

4.   The other is a piece of reef shaped like a fungal bracket of concentric rings, or perhaps like a footprint cast.

5.   These are usually made up of a central pit or cup, surrounded by one ring or concentric rings or spiral turns.

6.   They also show various other features such as zig-zag patterns, concentric rings, and dendritic structures.

7.   It is built of large blocks of travertine stone and the arch has two concentric rings of radiating voussoirs.

8.   Its exit into the Tiber can still be seen in Rome near the Ponte Rotto.

9.   Also, more companies are designing their networks in concentric rings that allow traffic to reroute quickly when a break occurs.