Misc: rod steiger played the villain in which smash hit musical (yup, he sang, too.)?

Questions

What Canadian province was the site of England's first overseas possession?

What canal parts redesigned by Leonardo da Vinci in 1497 are still in use today?

What capital city is found near the headwaters of the Bosna River?

What Castro trademark did the CIA try to lace with poison?

What Chinese city is the world's largest noncapital?