There’s a tree in the east that looks like a pillar. The tree is tall and straight and does not have any leaves or branches. The tree is basically a big wooden pillar that just happens to be alive still.
That pillar happens to be in the center of とうきょう. If you need to find east (which is where とうきょう is), you just look for the pillar.
Currently there are no similar looking kanji which exist in the WaniKani learning system