Four dimensions clash in this awesome lego set. One portal opens in a city and people run for their life. Another portal opens on the planet Zorg. A rocket frantically tries to get away from a massive alien. Yet another portal opens in the pacific ocean next to a boat. Big waves crash into the boat as it heads right towards the portal. The last portal opens in a fairy tale land where there's knights, castles, and dragons. I built it because I think it would make an awesome set and it is unique from all of the others sets. I think this would make a great set because it is fun to play with and it was fun to build. You could also build your own dimension to go with this set.