UNESCO will announce its decision next year on Britain's latest nomination for world heritage status.
The bridge spans the Firth of Forth between Edinburgh and Fife would add to the five world heritage sites currently in Scotland, which include the island of St Kilda and Edinburgh's Old and New Towns.
-- Advertisement --
Ms Miller said: "World heritage sites attract tourists from all over the world and Britain has some extraordinary places that have yet to be recognised by Unesco.
"If the Forth Bridge bid is successful in achieving such prestigious international recognition, then Britain will have yet another iconic place by which to attract tourists to our shores."
Scottish secretary Alistair Carmichael said: "The Forth Bridge is an excellent example of the UK's rich culture and heritage and proudly symbolises Scotland's place in the world as pioneers of construction.''
Scotland's culture secretary Fiona Hyslop added: "As one of the world's most recognisable landmarks the bridge not only connects communities in a practical sense, but also connects those who admire its design with Scotland's proud industrial and cultural heritage."
(IT/MH)
