Build it on a rotating platform. Build it directly on the North Pole.
Chat with our AI personalities
In Mauville City, there is a house south of the Bike Shop. In the house live a person called the "Rock Master". Talk to him, and he will give you TM 06, Rock Smash.
There is a house south of Pewter City that has a person willing to trade his Mr. Mime for an Abra. To get there, you can either go through the tunnel full of Diglett's (and occasional Dugtrio's) east of Vermilion City, or you can HM Cut the tree down south of Pewter City.
You get the secret potion by talking to the pharmacist in Cianwood City. His house is in the south, south east of the gym.
South-west of the light house.
You can give your Pokemon massages in a house south of the Veilstone Gym.