Quedlinburg is a northern German town known for its medieval streets lined with half-timbered houses. Overlooking the city is Quedlinburg Castle. The castle complex includes Romanesque-style Church of St. Servatius, which houses the tomb of 10th-century German king Henry I. The Schlossmuseum displays thousand-year-old artifacts. From the town, the Selke Valley Railway travels along cliffs, meadows and vast forests.

Quedlinburg is situated just north of the Harz mountains, in the district of Harz in the west of Saxony-Anhalt, Germany. As an influential and prosperous trading centre during the early Middle Ages, Quedlinburg became a center of influence under the Ottonian dynasty in the 10th and 11th centuries. The castle, church and old town, dating from this time of influence, were added to the UNESCO World Heritage List in 1994 because of their exceptional preservation and outstanding Romanesque architecture.

Quedlinburg has a population of more than 24,000. The town was the capital of the district of Quedlinburg until 2007, when the district was dissolved. Several locations in the town are designated stops along a scenic holiday route, the Romanesque Road.

In the centre of the town are a wide selection of half-timbered buildings from at least five different centuries (including a 14th-century structure, one of Germany's oldest), while around the outer fringes of the old town are examples of Jugendstil buildings, dating from the late 19th and early 20th centuries.

The old town of Quedlinburg belongs to the largest in Germany with a size of around 90 hectares. 2000 half-timbered houses can be found here. The oldest, the "Ständerbau", dates back from 1347.

Another famous building is called "Klopstockhaus", the birthplace of poet Friedrich Gottlieb Klopstock.

Since December 1994, the old town of Quedlinburg and the castle mount with the Stiftskirche (collegiate church) are listed as one of UNESCO's World Heritage Sites. Quedlinburg is one of the best-preserved medieval and Renaissance towns in Europe, having escaped major damage in World War II.

In 2006, the Selke valley branch of the Harz Narrow Gauge Railways was extended to Quedlinburg from Gernrode, giving access to the historic steam narrow gauge railway, Alexisbad and the high Harz plateau.

The castle and Stiftskirche St. Servatius still dominate the town like in the early Middle Ages. The church is a prime example of German Romanesque style. The treasure of the church, containing ancient Christian religious artifacts and books, was stolen by an American soldier but brought back to Quedlinburg in 1993 and is again on display here.

The former Stiftskirche St. Wiperti was established in 936 when the Kanonikerstift St. Wigpertus (of male canons) was moved from the castle hill to make way for what became Quedlinburg Abbey. The church was built at the location of the first Ottonian Royal palace at Quedlinburg. Around 1020, a three-aisled crypt was added to the basilica. The crypt, which survived all later alterations to the church, is also a designated stop on the Romanesque Road today.

Quedlinburg Abbey (German: Stift Quedlinburg or Reichsstift Quedlinburg) was a house of secular canonesses (Frauenstift) in Quedlinburg in what is now Saxony-Anhalt, Germany. It was founded in 936 on the initiative of Saint Mathilda, the widow of the East Frankish King Henry the Fowler, as his memorial. For many centuries it and its abbesses enjoyed great prestige and influence. Quedlinburg Abbey was an Imperial Estate and one of the approximately forty self-ruling Imperial Abbeys of the Holy Roman Empire. It was disestablished in 1802/3. The church, known as Stiftskirche St. Servatius, is now used by the Lutheran Evangelical Church in Germany.