Bangkok - Bangkok - Thailand

Mind the gap sign on the subway train platform floor and yellow color and dirty and no people. gap; mind; london; subway; sign; platform; underground; train; station; transport; railway; safety; danger; yellow; warning; uk; england; caution; tube; background; travel; concept; traffic; closeup; railroad; line; insurance; life; black; security; business; color; pattern; white; metro; track; transportation; texture