Tokyo (the capital of Japan)
A city in way Northern Canada, I'd say it could have about 15 people and around 2,000 researchers.
This one got me wondering, and made me wanted to find out, which city it could be; and by researching it, I found out that it was Tuvalu with 11, 468.
The Vatican City.
It's is hard to tell, but Lictenshtein in South Africa, have 0 familys, which means 0 people.