Bundesstraße 27 or B27 is a German federal road. It connects

Blankenburg am Harz Blankenburg (Harz) is a town and health resort in the district of Harz, in Saxony-Anhalt, Germany, at the north foot of the Harz Mountains, southwest of Halberstadt. It has been in large part rebuilt since a fire in 1836, and possesses a castl ...

with

Rafz Rafz is a municipality in the district of Bülach in the northwest of the canton of Zürich in Switzerland. Rafz was first mentioned in 1413 as ''Rafsa''. Geography Rafz has an area of . Of this area, 52% is used for agricultural purposes, w ...

in Switzerland.

Route

The Bundesstraße 27 crosses the following states and towns (north to south): *

Saxony-Anhalt Saxony-Anhalt (german: Sachsen-Anhalt ; nds, Sassen-Anholt) is a state of Germany, bordering the states of Brandenburg, Saxony, Thuringia and Lower Saxony. It covers an area of and has a population of 2.18 million inhabitants, making it the ...

Lower Saxony Lower Saxony (german: Niedersachsen ; nds, Neddersassen; stq, Läichsaksen) is a German state (') in northwestern Germany. It is the second-largest state by land area, with , and fourth-largest in population (8 million in 2021) among the 16 ...

: Braunlage,

Göttingen Göttingen (, , ; nds, Chöttingen) is a college town, university city in Lower Saxony, central Germany, the Capital (political), capital of Göttingen (district), the eponymous district. The River Leine runs through it. At the end of 2019, t ...

Hesse Hesse (, , ) or Hessia (, ; german: Hessen ), officially the State of Hessen (german: links=no, Land Hessen), is a state in Germany. Its capital city is Wiesbaden, and the largest urban area is Frankfurt. Two other major historic cities are Da ...

: Sontra,

Bad Hersfeld The festival and spa town of Bad Hersfeld (''Bad'' is "spa" in German; the Old High German name of the city was ''Herolfisfeld'') is the district seat of the Hersfeld-Rotenburg district in northeastern Hesse, Germany, roughly 50 km south ...

Fulda Fulda () (historically in English called Fuld) is a town in Hesse, Germany; it is located on the river Fulda and is the administrative seat of the Fulda district (''Kreis''). In 1990, the town hosted the 30th Hessentag state festival. Histor ...

Bavaria Bavaria ( ; ), officially the Free State of Bavaria (german: Freistaat Bayern, link=no ), is a state in the south-east of Germany. With an area of , Bavaria is the largest German state by land area, comprising roughly a fifth of the total l ...

Hammelburg Hammelburg is a town in Bavaria, Germany. It sits in the district of Bad Kissingen, in Lower Franconia. It lies on the river Franconian Saale, 25 km west of Schweinfurt. Hammelburg is the oldest winegrowing town (''Weinstadt'') in Franco ...

Würzburg Würzburg (; Main-Franconian: ) is a city in the region of Franconia in the north of the German state of Bavaria. Würzburg is the administrative seat of the '' Regierungsbezirk'' Lower Franconia. It spans the banks of the Main River. Würzbur ...

Baden-Württemberg Baden-Württemberg (; ), commonly shortened to BW or BaWü, is a German state () in Southwest Germany, east of the Rhine, which forms the southern part of Germany's western border with France. With more than 11.07 million inhabitants across a ...

Tauberbischofsheim Tauberbischofsheim is a German town in the north-east of Baden-Württemberg on the river Tauber with a population of about 13,200. It is the capital of the Main-Tauber district. It is a popular tourist destination due to its numerous historical ...

Heilbronn Heilbronn () is a city in northern Baden-Württemberg, Germany, surrounded by Heilbronn District. With over 126,000 residents, it is the sixth-largest city in the state. From the late Middle Ages, it developed into an important trading centre. A ...

Ludwigsburg Ludwigsburg (; Swabian: ''Ludisburg'') is a city in Baden-Württemberg, Germany, about north of Stuttgart city centre, near the river Neckar. It is the largest and primary city of the Ludwigsburg district with about 88,000 inhabitants. It is ...

, Stuttgart,

Tübingen Tübingen (, , Swabian: ''Dibenga'') is a traditional university city in central Baden-Württemberg, Germany. It is situated south of the state capital, Stuttgart, and developed on both sides of the Neckar and Ammer rivers. about one in thre ...

Rottweil Rottweil (; Alemannic: ''Rautweil'') is a town in southwest Germany in the state of Baden-Württemberg. Rottweil was a free imperial city for nearly 600 years. Located between the Black Forest and the Swabian Alps, Rottweil has nearly 25,000 ...

Donaueschingen Donaueschingen (; Low Alemannic: ''Eschinge'') is a German town in the Black Forest in the southwest of the federal state of Baden-Württemberg in the Schwarzwald-Baar '' Kreis''. It stands near the confluence of the two sources of the river ...

, Jestetten The B27 is interrupted in two places: between Würzburg and Tauberbischofsheim, where it has been replaced by the motorways A3 and A81, and between

Randen Randen may refer to: * Randen (mountain range), in Switzerland and Germany * Randen, a tram line of the Keifuku Electric Railroad in Japan See also * Randens Randens (; frp, Randèns) is a former commune in the Savoie department in the Auve ...

and Jestetten, where it crosses through Switzerland. The part south of Stuttgart follows the ''Schweizer Straße'' (Suisse road), a chaussee from 18th century. D ST Rübeland HVLE 285001 Sz 20080511.jpg, in the

Harz The Harz () is a highland area in northern Germany. It has the highest elevations for that region, and its rugged terrain extends across parts of Lower Saxony, Saxony-Anhalt, and Thuringia. The name ''Harz'' derives from the Middle High German w ...

mountains Stuttgart-pragsatteltunnel-2006-06-05-bigcat.jpg, interchange with B 10 in Stuttgart B27 Tübingen.jpg, in the

Neckar The Neckar () is a river in Germany, mainly flowing through the southwestern state of Baden-Württemberg, with a short section through Hesse. The Neckar is a major right tributary of the Rhine. Rising in the Schwarzwald-Baar-Kreis near Sc ...

valley