This title is all about the powerful skyscraper, One World Trade Center, which is also known as the Freedom Tower. Readers will learn all about its construction, why it was constructed, the materials and security that went into building it, and it uses. This title is written at a Level 3, specifically for transitional readers. Aligned to Common Core standards & correlated to state standards. Dash! is an imprint of Abdo Zoom, a division of ABDO.