Poll: Help! Rock and roll museum? 10 points.?

I'm going to the rock and roll hall of fame museum. In clevland. And I was wondering about some things about it 1. How many exibits are there? 2. Do they really have Janis Joplins porshe on display? Do they have a display for Shannon hoon or his Band Blind Melon? Are any of Kurt cobains things there? Was it fun when you went there?