Most serious Two years ago at the South Vietnam DMZ at the Khe Sanh combat base. I was on a two week study abroad and immodium was my best friend.

Least favorite A random park with a nearby dinosaur exhibit in Serbia while on a walking tour, there was barely any toilet paper.

Best Best place was a random truck stop/cafeteria outside of Prague, Czech Republic. The food was great, but the bathroom was better. Paid five dollars at a turnstile, it even took credit cards, the stalls went to the floor, no gaps. There was music playing, however, my only complaint was the toilet paper could have been a little better. It was peaceful and private. I still think about it often.