Things You'll Need
Instructions
Stack five of the 2 x 4 Lego bricks on top of each other. Press down on the bricks to lock them into place. Repeat with the other five.
Press one roof tile on one horizontal row of studs on the tower. The slanted portion of the tile should hang over the edge of the tower. Repeat with the other tower.
Turn one of the towers upside down. Press the stud on the top of another roof piece under the overhanging part. Repeat this again with five more roof pieces, placing each one under the slated portion of the tile. Repeat with all the roof tiles on both sides of the tower.
Connect to two towers by press the 4 x 4 plate piece under the last roof tiles. Turn the half-pipe over.
Cover the studs on the place with 1 x 1 flat pieces.