When I worked at Booking.com, my eyes were really opened to the world around me. Really, it's one thing to say that you know the different time zones, it's another to call someone at midnight and it be noon where they are.
This was a solid job that allowed you to interact with people around the world, and gave me a greater appreciation of the various cultures and peoples.
When I worked there, there really wasn't any kind of work atmosphere other than simply being there and doing your job, but then I worked 3rd shift, so that may have something to do with it.
The managment was solid and was always there to help if you needed it.
The hardest part of the job was the language barrier you could face if dealing with a non english speaking person.