Raptures Chemical Compound Facility is where The Test Most of the Chemicals in Rapture to test if its safe for Rapturians. This Also the place where the tested EVE and ADAM. You Have to cross the facility to get to Rapture Zoo. Bute David Fliser AKA Dice, Dosnt Want you to leave. It is said that he went insane from Eating Raw EVE. You Must Kill Dice and get the key to escape. This is Also the Place where they first tested Little Brothers and where ADAM was created.