Lunar city is the city of the moon in lunar city there is

Lunar temple is where u can pit yourself against the moon pokemon
A marketplace where you can chat to the townsfolk
A pokecenter where you heal your pokemon
Pokemart where you can by all your needed wares
A travel agency where you can fly to where ever you want

To the east is mantricia castle
to the west is Death-fall canyon
to the north is route town
to the south is the lunar mountain