John F. Kennedy Center
The Kennedy Center: Arts Edge: City Dionysia: Explore the Tragic Structure
One-page summary of the principal elements and conventions of ancient Greek tragedy.
A&E Television
History.com: The World Trade Center, by the Numbers
When the World Trade Center's Twin Towers opened to the public in 1973, they were the tallest buildings in the world. Statistics: They rose a quarter-mile in the sky, contained 15 miles of elevator shafts, and nearly 44,000 windows. From...