Jared Owen writes:
The Eiffel Tower has been on my list for a little while. I modeled the structure and then basically split it up into many pieces so the construction sequence could be animated. Most of the pieces were collection instances which was very handy to use. For the exploded view I used an armature with a bone to control each piece - this makes the dopesheet much cleaner. I plan to do more buildings/structures in the near future.
Enjoy the video!