XF 2.3 How to create a page? Thread better or a custom page to create data for country, state, city, and zip code?

[a1omads]

1) How can I create pages like these
State Page: https://www.city-data.com/states/Florida.html
City Page: https://www.city-data.com/city/Orlando-Florida.html
Zipcode page: https://www.city-data.com/zips/32801.html or https://www.city-data.com/zips/32803.html

Or customer page, like if I plan to have it as https://www.mydomain.com/locations/country-name/state-name/city-name

2) My site domain.com is just like Zillow and Redfin, so I want real estate investors, 1st time buyers, agents, and agencies to talk using a forum/community created by XenForo

How to create the same or better https://www.city-data.com/forum/

3) If i create a main categories such as Alabama, Florida, California, but when my traffic grows from worldwide, i many want to make or move above main categories under USA as main category, would i be able to do without losing threads and posts?

4) How to create a page? Thread better or a custom page to create data for country, state, city, and zip code?

I would appreciate it if anyone could guide me.