While those are certainly highlights, there's one thing you can't leave the city without experiencing: the stroopwafel. This iconic Dutch treat is a must-try for anyone visiting the Netherlands ...

The Stroopwafel is another iconic plane treat originating from northwestern Europe. United Airlines (UAL) began serving the waffle cookie with a caramel interior layer on domestic flights in 2015 ...

The new items are the Stroopwafel McFlurry from the Netherlands, the Grand McExtreme Bacon Burger from Spain, the tomato-mozzarella chicken sandwich from Canada, and cheesy bacon fries from Australia.

Not a stroopwafel. Credit: Ken Reid/Getty Images Unless you're a professional masochist, there are very few good things about flying — especially if you're flying economy or basic economy.