My students and I have a lot of fun with little class competitions. I put students into groups of 3’s and have the 20 pictures and 20 maps all cut up and put into plastic baggies.
Once each group has a baggie, I’ll tell them that they will have 10 minutes of time to work together to collaboratively do their best to match the landmark to the location on the map. I use an online classroom stopwatch that can be displayed on my projector.
Students then work cooperatively and will make 20 stacks with the photo of the landmark on top of the map with showing the location of that landmark.
When 10 minutes is up, I go through the answers with them via PowerPoint and have them make a row of ones they have correct and another row of the ones they didn’t have correct.
The team with the most correct at the end will get Dum-Dum suckers or Lifesaver mints (whatever I have in stock).
Sometimes things like this are a great way to spend 15 minutes starting a Monday to get everybody back in school mode, talking, and cooperating. It's a win-win-win all around!