Does samsara exist or not exists?

Does samsara exist? Or does samsara not exists and it just looks to us that it exists, but in reality it is all the same "thing"? Here's the updated question, to make it clearer: **UPDATE** Nibanna is the cessation of all that is conditioned, i.e. samsara. As I understand it, when you attain Nibanna which is unconditioned, then you are out of samsara. Does this mean, that when you attain Nibanna, samsara: 1. does not exist but it exists for other beings in samsara? 2. does not exist, and neither it exists for the other beings in samsara, because Nibanna is unconditioned, so there is no samsara, and consequently there are no beings? Which one is it? 1 or 2?