Home > Thematic Unit/Primary > Giant Machines & Structures > Giant Machines & Structures Includes 10 titles Building Machines and What They Do Caslte Dirt Movers Frieght Train Hot Air Henry #Mike Mulligan and His Steam Shovel Planes Power Machines Pyramid Story of the Statue of Liberty #Little Novel-Ties Study Guide available. PTHG5$73.00 Copyright © 2005 Learning Links, Inc. All rights reserved.