DN1B

DN1B (Romanian: Drumul Naţional 1B) is a national road in Romania which runs from Ploieşti to Buzău via Mizil. The DN1B has recently been upgraded. On its first segment, from Ploieşti to Valea Călugărească it runs through one of Romania's most important wine regions and the site of many inns (hanuri) and historical cellars, many of which were built in the 18th and 19th centuries. The DN1B is therefore known as Romania's "wine road".

Main roads in Romania
Motorways	A1 A2 A3 A4 A6 A11
Motorways under construction	A1 A3 A4 A7 A10
Planned motorways	A0 A5 A8 A9 A12 A13
Main national roads	DN1 DN2 DN3 DN4 DN5 DN6 DN7 DNCB
Other national roads	DN1B DN67C DN7C DN10 DN73 DN21