Ahr Cycleway

Blankenheim Castle (German: Burg Blankenheim) is a schloss above the village of Blankenheim in the Eifel mountains of Germany. It was built as a hill castle around 1115 by Gerhard I and became the family seat of the House of Blankenheim. The lords of Blankenheim were elevated to the countship in 1380. The counts were related to the counts of Manderscheid and, from 1469, were named Manderscheid-Blankenheim. With the extinction of the lines of Manderscheid-Gerolstein and Manderscheid-Kail (1742) the County of Manderscheid became the largest independent territorial lordship in the Eifel.

Blankenheim is a municipality in the district of Euskirchen in the state of North Rhine-Westphalia, Germany.

The Armuthsbach is an 18.4-kilometre-long, orographically left-hand tributary of the Ahr in the German states of North Rhine-Westphalia and Rhineland-Palatinate.

Nettersheim is a municipality in the district of Euskirchen in the state of North Rhine-Westphalia, Germany. It is located in the Eifel hills, approx. 20 km south-west of Euskirchen. The rivers Erft and Urft have their source in the municipality.

Euskirchen (German pronunciation: [ˈɔʏskɪʁçn̩] (listen)) is a Kreis (district) in the south-west of North Rhine-Westphalia, Germany. Neighboring districts are Aachen, Düren, Rhein-Erft-Kreis, Rhein-Sieg, Ahrweiler, Daun, Bitburg-Prüm, and the Liège province (Belgium).

The Erft (pronounced [ʔɛɐ̯ft]) is a river in North Rhine-Westphalia, Germany. It flows through the foothills of the Eifel, and joins the Lower Rhine (left tributary). Its origin is near Nettersheim, and its mouth in Neuss-Grimlinghausen south of the Josef Cardinal Frings Bridge. The river is 106.6 kilometres (66.2 mi) long, which is significantly shorter than it was originally. Due to the open-pit mining of lignite in the Hambacher Loch, the flow of the river had to be changed. The Erft gave its name to the town of Erftstadt, through which it flows, as well as to the Rhein-Erft district. It also flows through the towns of Bad Münstereifel, Euskirchen, Bergheim, Bedburg and Grevenbroich.

Marmagen is a German tradesmen's village in the Eifel with a population of about 1,600. The formerly independent parish has been part of the municipality of Nettersheim in the district of Euskirchen since 1969. Marmagen is the oldest village in the former district of Schleiden and goes back to the Roman vicus of Marcomagus on the Roman road from Trier to Cologne which is recorded in Roman itineraries of the 2nd to 4th centuries. After a 700-year history as an abbey village owned by the nearby Premonstratensian Abbey of Steinfeld since the early 1900s Marmagen has developed a distinct culture of trades in the building sector. Today Marmagen sees itself as a 'nature experience village' and is the site of the well known clinic, Eifelhöhenklinik AG Marmagen.

The Eifel Aqueduct was one of the longest aqueducts of the Roman Empire. The aqueduct, constructed in AD 80, carried water some 95 kilometres (59 mi) from the hilly Eifel region of what is now Germany to the ancient city of Colonia Claudia Ara Agrippinensium (present-day Cologne). If the auxiliary spurs to additional springs are included, the length was 130 kilometres (81 mi). The construction was almost entirely below ground, and the flow of the water was produced entirely by gravity. A few bridges, including one up to 1,400 metres (0.87 mi) in length, were needed to pass over valleys. Unlike some of the other famous Roman aqueducts, the Eifel aqueduct was specifically designed to minimize the above-ground portion to protect it from damage and freezing.

Ohlenhard is a municipality in the district of Ahrweiler, in Rhineland-Palatinate, Germany.

Hümmel is a municipality in the district of Ahrweiler, in Rhineland-Palatinate, Germany. The municipality has a forest of ancient beeches. It employs the forester and author Peter Wohlleben, who operates an ecologically sensitive burial ground there to generate funds for maintenance and protection of the forest. He gives talks and publishes books to increase public understanding of trees and their interdependence.

The Herkelstein is a hill, 434.5 m, in the northeastern part of the der Eifel, in the German state of North Rhine-Westphalia. It forms the highest point of the Eschweiler Ridge and lies in the North Eifel Nature Park. Geologically the region is part of the Limestone Eifel, the Herkelstein itself - like the rock formations of the Kakus Caves - is made of Devonian Limestone. It lies between the villages of Weiler am Berge and Holzheim (Mechernich). From the top there is a good long-distance view over the Cologne Bay. The vegetation on the Herkelstein comprises coniferous and mixed forest, pastures and arable fields. At the foot of the Herkelstein rises the Krebsbach stream, which empties into the Feybach at Breitenbenden. Several years ago a number of lime kilns were discovered on the northeastern slopes of the Herkelstein near the village of Weiler am Berge.

The Stockert is a 435-metre-high hill which rises between Eschweiler and Holzheim in the district of Euskirchen in the borough of Bad Münstereifel, in the Eifel mountains of Germany, and west of the city of Bonn.