Here's some cities that are not in the list:
Edmonton
Ottawa
Dallas
San Diego
Denver
Nashville
Phoenix
Portland (OR)
Las Vegas
Salt Lake City
Philadelphia
Liverpool
Glasgow
Porto
http://www.dailymail.co.uk/travel/tr...ond-place.html
Not sure what criteria the above cities fail to meet to make the list.
I can also think of a bunch of cities in Brazil with 1 million-plus people that are not in this list.