Join Date: Jan 2008
Location: Rio de Janeiro, Miami, Nice
Programs: Marriott Titanium, AA Concierge Key, Delta, United, Emorates, and others
Posts: 4,694
1) Niagara Falls- especially on the US side it is too much of a mess to be wonderful
I seem to have forgotten most of the others, but I'm sure there have been a few. For me it is easier to do the other side of this question, luckily I forget most bad experiences.