These are some of my favorite souvenirs from Paris. Postcards featuring templates that you can cut out, fold and tab together to create 3-dimensional buildings. The company that makes them is called Instant Durable.
Honestly, since they are sold on postcard stands as "mailable projects," the buildings, tabs and slots are very small. In my mind, they are better suited to being framed and hung as art, than actually constructed into tiny buildings.
They are perfect examples of what I love to show you...things that are beautiful and interesting. Magnifique!