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However, chances are, most of us have been a tourist at some point in our lives, which is a good reason to treat them nicely.
Some cities are better at this concept than others.
The private jet charter company Stratos conducted a study where they looked at a collection of #tourist tweets on Twitter from locations across the US to see where the most positive and negative tourist-related tweets came from.
Chicago won by a landslide, and the other cities that welcome tourists with open arms span the country from Atlanta to Portland.
There's plenty for tourists to do in Chicago, whether it's the Skydeck at the Willis Tower, Oak Street or North Avenue Beach in the summer, the Art Institute, or one of the city's music festivals such as Lollapalooza or Ravinia. Chicago is also home to some delicious cuisine that's best when sampled there, think deep dish pizza, Italian beef, and famous Chicago hot dogs. Plus, like most other Midwesterners, Chicagoans are friendly, a little more laid back, and easy to approach.
Here are the 10 most tourist-friendly cities in the US:
1. Chicago, Illinois
2. Atlanta, Georgia
3. Philadelphia, Pennsylvania
4. Miami, Florida
5. Portland, Oregon
6. Seattle, Washington
7. Washington, DC
8. Houston, Texas
9. Paradise, Nevada
10. Nashville, Tennessee
Take a look at the graphic below to see the full results of the study.