1900s
1902
20th
america
american
and
archival
archive
b&w
black
build
building
buildings
century
city
construction
crew
digging
early
engineering
excavate
excavating
excavation
historic
historical
human
humans
new
north
nyc
of
old
people
photo
photograph
public
site
states
subway
subways
transport
transportation
tunnel
tunneling
tunnelling
tunnels
twentieth
U.S.A.
united
us
usa
vintage
white
work
worker
workers
working
york