I almost exclusively read fiction (and academic criticism thereof, which can include areas of Philosophy, Sociology, Anthropology...), mostly by non-Western/"minority" authors (which double as research and teaching material). Some of my favorites are
Half of a Yellow Sun by Chimamanda Adichie
Death and the King's Horseman by Wole Soyinka
Where We Once Belonged by Sia Figiel
The Bone People by Keri Hulme
Once were Warriors by Alan Duff
The House on Mango Street by Sandra Cisneros

I also enjoy reading Edgar Allan Poe, William Faulkner, Thomas Mann, Hermann Hesse, Tolkien, Goethe, Toni Morrison, Sherman Alexie, Upton Sinclair,...

When I travel I read those page-turners you can buy at the airport and I have read every Stephen King book out there (except for the Dark Tower series).

Reading is the next-best thing to traveling when it comes to escaping for a little while. I always carry a novel with me. Good thing I read for a living.

I also read the news on the internet and how-tos when I need them (the latest about adding power steering fluid...).