The heart of any museum is its collection. The ISM is no different in spite of being virtual. We have many wonderful exhibits, including over fifty rockets from more than a dozen space agencies and private space venture firms, and other things as well.
For a list of exhibits and documentation (still a work in progress) about many of them, visit our exhibits wiki, and if you would like to help write or translate some of the descriptions, contact the wiki manager.
We hope over time this wiki will become a public resource beyond our virtual worlds presence, so we want to make our wiki entries as informative as possible.