This Sunday marks the tenth anniversary of the September 11 attacks. The World Trade Center may still largely be a construction site, but all eyes are on the site’s first new skyscraper, One World Trade Center, formerly known as Freedom Tower. The tower, along with three others, are part of Daniel Libeskind’s (heavily edited) master plan “Memory Foundations,” which is the product of an international competition that produced half a dozen awe-inspiring designs. Featuring twisting towers and interconnecting grid-like buildings, the other six designs are certainly worth remembering – hit the jump to take a look!

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