Sao Tome and Principe
$1 USD = 14,350 Dobra
Sao Tome and Principe is a small island nation off the western coast of Africa and has the fifth-weakest currency in the world. A single U.S. dollar will cost you 14,350 dobra.
The former Portuguese colony is the second-smallest nation in Africa, bigger than only Seychelles, and it exports cocoa, palm kernels and coffee.