royalty free metro images, dominant color: blue, sorted by color percentage
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alexanderplatz street signage -
train station interior -
metro signage -
grey metal metropolitan signage -
white wall paint -
city building during day time -
gray metal framed escelator -
white and clear glass building -
white concrete glass building -
red black and blue underground round signage -
brown brick building -
blue uu post signage -
gray concrete statue