ceiling
support column
fire alarm
exit signs
platform
escalator
handrail
staircase (or stairs)
pole
subway
lights
wall
stair

Subway station

The Online Photo Dictionary: ceiling, support column, fire alarm, exit signs, platform, escalator, handrail, staircase (stairs), stair, pole, subway, lights, wall

escalator stair staircase (or stairs) exit signs fire alarm handrail subway exit sign lights lights platform support column ceiling wall pole