Even at the lowest magnification of 10x, you can see the cells in this chickweed leaf, which is just one centimetre from base to tip.
Zooming in to 60x you can see how the cells line up to make structures, along the vein and the edge of the leaf.
At 200x there’s isn’t much depth of field but it looks to me as if there’s a single line of cells forming a tube along the edge of the leaf.
These were taken on a Traveler USB microscope, which I bought in 2009 at Aldi’s. The software that came with it is long out of date, so it’s taken a bit of ingenuity by my computer expert friend Martin to find a workaround to get it working on my iMac, via a virtual Windows 10 installation.
Link
Under the Microscope my Wild West Yorkshire nature diary for 20 September 2009.