Completed in 2011 to commemorate the 10th anniversary of the attack on the World Trade Center, the City of Tampa received a portion of the north tower of the WTC complex from the Port Authority of NY & NJ. The World Trade Center site is represented as an elevated concrete base, matching the orientation and scale of the site in New York City. Thin aluminum members rise from the base, tracing the placement, material, and proportions of the twin towers. The memorial is one one-hundreth the scale of the actual towers and site. The steel WTC artifact, held above the base within the symbolic north tower, functions as a sundial. As the shadow of the artifact falls on the ground on the morning of September 11, the lower slab marks the duration of time from the first airplane's impact on the north tower to the subsequent collapse of the tower on September 11, 2001.