What's the Kennection? #78

Welcome to Kennections, a weekly quiz created by Jeopardy! champion/co-host Ken Jennings. Here's how to play: All five answers to the questions below have something in common. Can you figure it out? (Note: We've given you a hint by showing you how many letters are contained within the answer, but this quiz is not interactive.)

1.  What Bavarian city hosted the enormous Nazi rallies recorded in Leni Riefenstahl’s propaganda film Triumph of the Will?

__ __ __ __ __ __ __ __ __

2.  What does the letter ‘Z’ stand for in the famous DMZ of the Korean Peninsula?

__ __ __ __

3.  What was the first video game to spawn a hit pop song and a TV cartoon series?

__ __ __ - __ __ __

4.  British-born restaurateur Christopher Sell invented the deep-fried version of what Hostess snack?

__ __ __ __ __ __ __

5.  Earth’s inner core is an alloy of iron and what other metal?

__ __ __ __ __ __

ANSWERS ----->