Well Bro,
nice to hear you are safe and with good mood back in Austria.

first i have to say that was a well documented and mindblown trip what you did so far. As i wrote you at the beginning of your Trip i would like to visit NewYork too. So i bookmarked the Hot-Spots you've Visited so i will remember to visit them when i fly over.

i wish all participiants the best of Luck, so here are my answers:

1. You landed at the JFK Airport :) is this the Major one? you have to tell me ;)
2. i didn't know that ChinaTown was so close to reach.
3. Not shure that i can write it up, because im a Canon-User but you bought a Sony FE 24-105mm F4 G OSS.
4. Didn't heared before, that it got Nicknames, funny thing, here it comes: The Great White Way and The Crossroads of the World
5. That's something that i learned in the Historic SchoolLessons ;-) - France
6. Never been there, the shot's you made are amazing! Washington DC
7. The Cermentary in Washington
8. The United States Congress is the bicameral legislature of the Federal government of the United States.
9. Cleveland Cavalier and Golden State Warriors
10. Probably your walking through the City was an immense workout, that's could be the right answer ;-) But i guess you mean the workout with your wife, where you used the Bike for 30 mins and 10 min on the treadmill.