Here are my preliminary ideas for exhibits that the museum should include.
This would be an artistic rendition of the transformation that occurs when someone is born again. It is based largely on Ephesians 2:1-9, but could include other verses. Ephesians talks about a transformation from being "objects of wrath" in God's sight to being seated in the heavenlies with Christ. That's quite a difference, and the exhibit should show that in a way that is somewhat shocking.
This could be combined with a walkable diagram (painted on the floor or something). A person would start on the "wrath" side of the line. Another line a good distance away represents the limits of God's Kingdom. A person would be invited to jump as far as possible from behind the "wrath" line in an attempt to reach God. Jumps can represent things like doing good works, going to church, and trying various religions. As a person walks farther down the exhibit, the "wrath" line curves up to God's dwelling place in the shape of a cross. A person would simply be invited to walk across, emphasizing that it is a free gift of God.
This exhibit may have a somewhat "Passion of the Christ" style effect. It would depict His last day or so before the crucifixion. As the museum patron continues, he would see the excruciating pain Christ went through. A contemplative crucifixion scene would follow, perhaps accompanied by soft music such as "When I Survey the Wondrous Cross." Later would be a resurrection scene.
I also want to include some apologetics information, such as the secular records of His crucifixion and accounts of the behavior of the apostles. This has powerful implications for how we can be sure that the resurrection is indeed fact. That part may, however, be in a different part of the museum.
The best way to counter heretical cults is for the Church (and others) to fully understand the doctrinal truths about Christ. People need to understand exactly who He is and about His nature. This exhibit could highlight scripture about who Christ is, visualizations of the Trinity, etc. There could be an attached electronic game where a player sees quotes about Christ by various people and decides if the quotes are Biblical truth or heresy.
Here we would show how the Bible and science really do agree with each other much more than people think. It would come from an old earth creationist view (please see the Controversies page). One point to be stressed is how the big bang, which is well-established by science, points unambiguously to not just any god, but specifically the God of the Bible.
While certain to be controversial to some Christians, there are a lot of people who have dismissed the Christian faith under the false impression that it requires belief that the earth is 6000 years old. A lot of lives have been changed, including mine, upon realizing that the Bible and modern science really aren't that far apart!
This exhibit will aim to be one of the most happy, exciting things you have ever seen! I believe that the Bible teaches that the Kingdom will continue to grow. Here we will try to visualize some of Jesus' parables about the Kingdom.
We will try to apply this to peoples' lives. With a proper understanding of the Kingdom, anyone can make a big difference. I also see a plea to suicidal people here, and not just necessarily Christians: God has a huge plan for your life -- something to live for and something to dedicate yourself to doing (Ephesians 2:10).
This will also include a section on the historic progress of the Gospel around the world and highlight current missionary efforts.
Another possibility is a lifelike performance of Jesus giving the Sermon on the Mount, by someone who has memorized it.
The Kingdom of God was the primary subject of Jesus' sermons, and He told us to follow His example. Let's do it!
It is amazing how many times in the Bible God states His care for the unfortunate. We need to take a look at the state of the world and consider a Christian response. This can be visualized by a big circle representing the world's population, divided among groups based in wealth. Appropriate furniture and table settings and food would be placed in each part of the circle, according to how they live and what they normally eat in any average day. We would show Bible verses about God's love and care for the poor and oppressed. We could also imagine a partnership with a Christian organization that takes care of children or fights for other oppressed people.
This exhibit will simply depict what is happening to Christians around the world -- just because they are Christians. Prayer will be encouraged.
Just like we as three dimensional beings can visualize how we are outside of a two dimensional plane and would be mysterious to such a plane's hypothetical inhabitants, we can understand God as simply having more dimensionality than we can perceive or even think about. This helps to solve some of the great mysteries such as how God can be close to all of us and how He can know the future.
We could have a moderated trivia-type game where participants could team up and rack up points together. Include not only Bible trivia, but also topics involving Christian history and doctrine.
Perhaps other kinds of games too -- any game that helps illustrate a Kingdom principle would be great.
Just a place to promote Christian musicians who genuinely try to build the body of Christ with their lyrics and lifestyles. Prefer those not associated with major labels. Of course have a table to sell CDs, possibly distribute music for free to peoples' flash drives if artists are OK with it.