Talk:Sandbox Mode/@comment-81.173.234.11-20130425003511/@comment-173.176.6.225-20130502030534

The wooden thing, which is a landmark on the map, is where you place the 4 Thing pieces. The wooden thing technically counts as a piece so that would make 5 but since you can't move it, we only count the other 4. Once it is constructed, you step through it and start a new world with everything in your backpack, on your person, and with all the tech you have. No chester. That means you won't need a science machine because you should have already unlocked all the basic tech to survive.

http://dont-starve-game.wikia.com/wiki/Wooden_Thing

Adventure mode, on the other hand, is unlocked by finding "Maxwell's Door" which is another landmark on every map. You simply step through and try out adventure mode. If you die, you are returned back to where you were before you entered his door. So that makes 2 things you can step into and enter new places; except you can't return from the Wooden Thing's teleportato D: I just did it.