A vertical shot of the warning symbols and indications on the doors of the Madrid metro

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Size: 3064px × 3986px
Photo credit: © WireStock / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: attention, caution, city, closeup, danger, doors, environment, europe, glass, icons, indications, italy, landmark, madrid, metro, outdoors, sign, subway, symbol, transportation, underground, urban, vertical, warning