One World Trade Center Opens to Tenants

One World Trade Center, the rebuilt centerpiece of the World Trade Center complex, opens for business at 1,776 feet — the symbolic height referencing the year of American independence, making it the tallest building in the Western Hemisphere. The structure has 104 floors and includes reinforced concrete walls, redundant stairways, and blast-resistant lobby features. Its construction, which took over a decade, symbolizes the rebuilding of Lower Manhattan after the attacks.