It's more fun when you think you're skillful!
why not more accessible things - a basketball hoop vs a delivery truck, a chicken egg vs a toilet, etc. things you don't ordinarily see side by side but you know roughly the size of each so you can compare.
So they give you the name of the exact turbine, but like... how is that helpful. I don't know random german nuclear turbines by name, and looking it up just... tells me the size and makes the game pointless.
I tried to max out the power turbine, and the grid did not follow and I assumed it hit the max size. I guess the action would be to zoom out and then further drag, but this is a bit annoying, same for zooming in past some scale.
There's the Statue of Liberty, and I guess a basketball hoop..?
Meanwhile there's a meerkat, egg, power plant turbine, Big Ben, wombat, panda, Chichen Itza and the Pyramid of the Sun, none of which are remotely USA centric.
Also the control could just be a slider. Much easier and simpler on all platforms.
Nice idea though.