All branches in a Choose Your Own Adventure book are visualized as lines. Pages are ordered from top to bottom. Green and red lines are for going forward and backward, respectively. Colored dots are the endings (no next pages). The longest path from the first page is highlighted in bold.
I lived in New York (in dark green) and have visited the green states. One rule: passing by or layover doesn't count; I have spent at least one night in these states. Major cities that I have visited are also shown as small bubbles.