The first day I would build
Give the city one clear route before adding extras.
- Start with Tangshan Earthquake Memorial and Nanhu Park while energy is high.
- Use Kailuan Mining Museum as the natural reset instead of crossing town too early.
the easier plan is Earthquake Memorial or museum first, Nanhu Park afterward, Kailuan if the day has space. That keeps the day readable instead of turning every good name into a separate detour.
I would rather leave one place for tomorrow than drag a tired route through city center just because it looked close on a map.