8 Countries Americans Can't Visit

Located in Central Asia and surrounded by ex-USSR countries and Iran, Turkmenistan has had its fair share of bad experiences with tourists.

The US visitor ban is probably a remnant of the old Soviet regime. The filthy American dollars aren't wanted by most of the "stan" countries anyway.

But if there is an absolute need to gain entry, a letter of invitation straight from the Turkmenistani government will be required, which, realistically speaking, is highly unlikely.

Obtaining a transit visa makes things a bit easier, but with that, one can only be permitted to stay inside Turkmenistan for three days.