hi, if i stay near tiananmen, what is the cheapest transportation from tiananmen to badaling? should i go to Deshengmen and take the bus 919 for the cheapest transportation? or should i go to the railway station and take the train to badaling?
if i take the 919 bus, what bus number should i take from tiananmen to deshengmen? and if i take the train, what bus number should i take from tiananmen to railway station? thank you.