Pretty much you can find Pokemon anywhere, on a sidewalk or in a river, or in a shopping center, or wherever you are. They will just be wandering in the world.
You can find the bestest,rarest, Pokemon is to go to www.marriland.com/pokemon
go to Pokemon marriland.com then it tells you where to find them
go on Pokemon crater
you can go in mt.commeret and you find a red ball then when you get out of that place you go too pig city and there you go
go to this website, find the name, and go get the pokemon!http://pokemonplatinum.net/v2/pokedex/
Go to the wayward cave and you will find a gible
go to Pokemon.marriland.com and search the legendary Pokemon you want to see
to find lugia go to the 4 whirl islands
They're rare, so you just have to find one by chance.
go to solcoan town and go into the ruins then wonder about and a wild unown (pokemon 114).
go to pokecenter and find the switch box to go from PC to team
It is a place where you find Shaiman. To go there you have to go to a pokemon event or have an action replay.