From the US to South America

[didymos]

I was just wondering if it's possible to travel from the US-Mexico border to the Peru-Chile border on foot, or motorcycle without a passport?

[Mark]

A passport is required to cross international borders in Central and South America.

[voxy]

No you can't across that if don't have a passport why don't you try to gety some, because if you have a passport you can travel in any place what you want if you have a gadget and may i request that try to ride in airplane because driving in that far away is too difficult it may produce some accident but in airplane 90% sure safe