Places to go for a 16th birthday celebration? DIFFERENT & UNIQUE!?

I wanna take maybe like 5-10 people somewhere for my birthday. I was thinking maybe we could go somehwere fun and maybe spend the night. If i want more people I could get a limo. How much does that cost for a day? I was also considering the Rainforest Cafe or Mars 2112 (too childish?)?? what can i do after? HELP!!!! I NEED TO START PLANNING!