What Italian city is famous for its leaning tower?

Pisa

What is the last book of the Bible? Who adopted Esther after her parents died? Who is the author of "How the Grinch Stole Christmas"? Who is known for her service to wounded soldiers during the Crimean War and became known as 'the Lady with the Lamp'? What unusual liquids are Portals placed onto in Portal 2 that affect movement and bounciness?