Miniature crafting isn’t easy, especially by hand. It’s what makes some pieces of jewelry worth a fortune, if made by a skilled artist.

While these cities aren’t jewels the level of craftsmanship is pretty cool. It’s hard to appreciate exactly how small they really are. Take out a pen near you – that’s the length of a test-tube. Now build a city inside it!

Impressed yet?

From Makezine:

What is it about incredibly tiny spaces that makes them seem so expansive? When I look at the meticulously crafted buildings and narrow landscapes of Rosa de Jong, I feel like I’m smaller than they are, that I could get lost in each detail. But each of these miniature buildings is no bigger than the test tube they are suspended in. They are a few centimeters wide at most.