What period would you travel to if you had a Time Machine and why that period?

There are several periods in time that I would love to visit.

1. Late 15th. century to invite Leonardo da Vinci out for a candlelight dinner
2. Late 16th. century to chat about oil colors with those famous old Dutch painters
3. Early and late 17th. century to try to play a duet with Mozart and have a cup of coffee with Galileo Galilei

There are quite a few others but those are definitely on the very top of my bucket list. Hope this machine gets invented soon.