Paul Llanberis:
I found this site which shows many the world's
underground/subway/metro systems to the same scale. Worth a look.

http://www.fakeisthenewreal.org/subway/

(I had a feeling this has been on the NG before...)

Well, I definitely pointed out on a previous occasion that the claim
of all the maps being to the same scale was completely false. But I
don't remember whether it came up on this newsgroup then, and I haven't
reexamined the site to see if anything has changed.
--
Mark Brader, Toronto,
MARTIANS BUILD TWO IMMENSE CANALS IN TWO YEARS.
Vast Engineering Works Accomplished in an Incredibly Short Time
by Our Planetary Neighbors. --N.Y.Times headline, August 27, 1911