If you’re looking to improve tourism in your city perhaps having a giant crossword puzzle is the answer. At least, for people of Lvov City in Ukraine that’s their strategy. They set up a 100 feet tall giant crossword at the wall of residential houses. What makes it even interesting is during morning it looks empty but when you visit at night you will see there are answers written!
The questions on this puzzle are scattered around the major stops of the city including theaters, fountains, monuments. etc. The idea is to create a sense of adventure for people to go and visit these great spots so they can find all the questions and answer it in front of the building. Better yet, wait at night to check if their answers are correct.
Quite an interesting yet odd concept to lure people to the city. Then again, the combination of curiosity and adventure is really hard to resist!