Entrance to London Underground, Battersea Power Station, Battersea, London, England, United Kingdom, Europe

View of subway entrance in Asakusa at night, Asakusa, Taito City, Tokyo, Honshu, Japan

Trendy man with a spinal cord injury in wheelchair going down subway stairs backwards

exit sign in New York City subway station

Commuter train arriving at station platform

Commuter train parked at station platform