A Mystic Rose—AKA a regular graph—with 60 points. Try the Mystic Rose generator.
Each point is connected to every other point. The mystic rose contains all connections between two members of a group, e.g., how many different handshakes there would be if everyone in a group shook hands with everyone else.
The number of lines in a mystic rose of n points around a circle = n(n-1)/2. Thus in a mystic rose with 60 points (shown), the number of lines = 60*59/2 = 1770.