Apart from the light at the top the Lighthouse it doesn't really have many other features.
Theres a trap door, yes another trap door in a playmobil building that drops the figure into a cave below that you get too by pulling a rock out of the way. The only new thing about the trap door though is how it operates from a lever that sticks through the tower wall and is operated from the outside.
The part at the front behind the double gates has a rather good sized space and the rocks at the back create a seated area, so there is plenty of storage room in there. It's just a pity that you don't get lots of barrels, crates and provisions to store in there.
The crane at the top has a very simple operation and it rotates the full 360 degrees of the tower, but it has no hook, you have to tie things on to pull them up, how odd.