The MOST significant effect of the Great Depression on Germany was that the economic instability led to

The Great Depression was a contributing factor to dire economic conditions in Weimar Germany which led in part to the rise of Adolf Hitler and the Nazi Party. Within the United States, the repercussions of the crash reinforced and even strengthened the existing restrictive American immigration policy.

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.