If there's one event that attracts millions of people every year to come to a small town of Lisse, is Keukenhof, which in translation means the Garden of Europe. The attraction displays thousands of different flowers in all shapes and sizes, landscaped incredibly by the most talented landscape architects to make the fields fun to visit. Tulips in all the color of the rainbow are the main attraction here, but you can actually enjoy other things beside flowers. Go inside a real windmill, take a boat trip, and shop some knickknacks to take home with you.