Maybe some kind of globe like this: https://www.youtube.com/watch?v=ah_gXnjjdk4 or http://workshop.chromeexperiments.com/globe-search/ is best? Otherwise just buying a standard globe will do just fine. Peter's is hardly better. It still destroys the appearance of the earth quite badly.

Personally I really like this one: https://en.wikipedia.org/wiki/Dymaxion_map It's basically a net that you can print of and fold together.