Plan: Stay about 3 nights in each country using youth hostels which are about 35 to 40 dollars a night.
The Places I will visited:
Africa: Cape Town
North America: Las Vages
South America: Calama
Youth hostels: $1,000
Taxing: $1,200 and a lot of walking!
Extra: $1,300How I worked the flights out: Go to http://tripplanner.airtreks.com/ and plan your trip.