Answer: metros

AnswerCrossword Clue
METROSGeo models
METROSSubways on the Continent
METROSUnderground systems
METROSUrban railways
METROSSome urban transit systems
METROSUnderground railways of Paris and D.C.
METROSSome public-transit systems, briefly
METROSWashington and Paris transit systems
METROSParis tubes
METROSPublic transportation
METROSUnderground transport systems
METROSSubways in Milan, Paris, etc.
METROSWashington and Paris transits
METROSTwo capital transits
METROSSome transit systems
METROSSome have red lines
METROSSmall Chevys
METROSUnderground networks
metrosmetropolitan
metrosunderground electric railroad, usually in a large city
metrosMETRO, a subway
metrosthe underground electric railway of Paris, France, Montreal, Canada, Washington, D.C., and other cities
METROSSome transit lines
METROSSubway systems
METROSSome undergrounds
METROSLittle cities?
METROSUnderground complexes
METROSTransit systems in Delhi and Paris
METROSTwo world capital transits
METROSSome Geos
METROSSubterranean railways
METROSUndergrounds
METROSCity subways
METROSMajor-city areas
METROSDC and Paris railways
METROSSubways
METROSMoscow and Paris subways.
METROSUndergrounds.
METROSSubways, in Europe.
METROSParis subways