Where do objects go when they have been Vanished (i.e. by a Vanishing Spell)?

Anybody have any ideas? Do these objects cease to exist? At first I thought they just go somewhere else, like the opposite of a Summoning Charm, but that's called a Banishing Charm, not Vanishing...
It seems like the Room of Requirement could be a resting place for these items, but that would really only be for items originating inside of Hogwarts. What about the rest of the world?

I visited the Harry Potter Wiki (see below), but unfortunately they didn't have any information on this.

link


Thoughts?