Don't worry, it's not quite as huge of an undertaking as it sounds - Reddit user Scoutisaspyable, also known as warlordjimbei on Instagram, is building Sinnoh in "LEGO Microscale", using the tiniest blocks available to make a top-down map of the place.
Scoutisaspyable built a tiny copy of the Pokémon League not too long ago, and the project continues apace with the addition of places like the Great Marsh, Route 220, Canalave City, and Jubilife City.
Here's a gallery of comparison images so that you can appreciate the attention to detail:
"At the moment, it has 14,222 parts," notes the builder, who made the mock-up in a LEGO program rather than real-life. Sadly, a real version would be impossible, since "the bricks don't exist in the colours I used." Ah well. Next up is Oreburgh, Sinnoh's mining town, where the game's first gym leader lives.
What do you think of these intricate builds? Let us know in the comments below.