- Chicago, this edition written and researched by Karla Zimmerman
- USA, top sights, authentic experiences, Karla Zimmerman, Ray Bartlett, Andrew Bender, Alison Bing, Stephanie d'Arc Taylor, Ashley Harrell, Adam Karlin, Ali Lemer, Vesna Maric, MaSovaida Morgan, Christopher Pitts, Kevin Raub, Greg Ward
- Washington, DC, Karla Zimmerman, Virginia Maxwell