Worlds Largest dot-to-dot, or connect the dots puzzle.
A few years ago, my friend Mike set out to create the worlds largest dot-to-dot puzzle. 
This puzzle is the largest dot-to-dot on the planet and very challenging. It measures 2 feet (24") by 3 feet (36") with over 10,000 dots to connect. The font seems small but is standard for the genre. The puzzle is not something you can cruise through in 20 minutes, it will take several hours. The scene, is of the locks located in Lockport. These locks are utilized to bypass Niagara Falls. The Erie canal has a series of locks that allow boats to navigate the height difference between Lake Erie and Lake Ontario.
A youtube of the puzzle can be seen here:
@OriginalWorks
The @OriginalWorks bot has determined this post by @amos811 to be original material and upvoted it!
To call @OriginalWorks, simply reply to any post with @originalworks or !originalworks in your message!
That's pretty wild. Once mistake and it would take hours to fix if you kept going. See you at the tables!