I’m a grown woman, but I still read teen books. One of my fave travel books is a YA novel called 13 Blue Envelopes. There is also a whole study abroad series that I used to read, that I need to find again. But an obvious ”grown person” favorite is Eat, Pray, Love. And another super fave is Kinky Gazpacho. Though these are actually memoirs and not novels, come to think of it. And I love how both of these women in the aforementioned books are still married to the guys they met on their journeys.