google maps, or google earth both have johannesburg.

Here's the map:

http://oi51.tinypic.com/2ev85z6.jpg

You already have the Johto Map once you enter the Johto Region. The Johto map is already at your disposal once you cross over into the Johto region, with all the names of the cities and routes, too. Just travel east of Newbark Town to enter the Johto region, and thus obtain the map.

Subtropical

http://www.holocaustresearchproject.org/ar/treblinka/trebmap3.jpg