This is the cobblestone pattern that can be done with or without a second color. In this case it has been broken up a bit with a “clean tile” look every 10 feet or so.
The curb style gives a very clean look to the landscaping.
Bean shaped islands are very popular to break up the monotony
The Belgian pattern gives curbing a textured or variegated feeling ...
Grass pathways are often lined with curbing.