Twice this week I’ve encountered some amazing photography of the tunnel-building process underneath Manhattan. I urge you to check these out:

• First, over at JWZ’s blog. Really fantastic, plus technically excellent — the depth of field and sharpness is sorta shocking, given that light is probably hard to come by down there.
• Then the Atlantic’s In Focus feature got in on the act.

Let’s hope they avoid awaking any ancient & unspeakable horrors.