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Mayen is a town in the Mayen-Koblenz District of the Rhineland-Palatinate Federal State of Germany, in the eastern part of the Volcanic Eifel Region. As well as the main town, additional settlements include Alzheim, Kürrenberg, Hausen-Betzing, Hausen and Nitztal. Mayen is the administrative centre of the Vordereifel ‘Collective Municipality’, although it is not part of the municipality.

Vordereifel is a Verbandsgemeinde ("collective municipality") in the district of Mayen-Koblenz, in Rhineland-Palatinate, Germany. It is situated on the eastern edge of the Eifel, west of Mayen. The seat of the municipality is in Mayen, itself not part of the municipality.The Verbandsgemeinde Vordereifel consists of the following Ortsgemeinden ("local municipalities"):

The Bellerberg Volcano (German: Bellerberg-Vulkan) is a volcano group that was formed 200,000 years ago by a large number of individual eruptions.

Katzenberg Hillfort (German: Spätrömische Höhenbefestigung Katzenberg or Römerwarte Mayen) is a Roman refuge fort near Mayen in Germany dating to the 4th century. The fortification on the Katzenberg hill was built around 300 AD after the Roman limes had been overrun and Germanic tribes had invaded and plundered the Roman Empire (the so-called Limesfall). The inhabitants of the Roman vicus, which was located on the site of the present-day town of Mayen, could escape to the fort in time of danger. At that time, town walls were built around the provincial capitals of Trier, Cologne and Mainz, as well as around smaller places like Koblenz or Andernach. The Katzenberg was the largest of about 60 Late Roman hillforts which were constructed in the Eifel and Hunsrück regions. They were used for about 70 years and then, after a 30-year pause, used again, in some cases until about 450 AD. On the uppermost crest of the hill is a small military outpost, the lower-lying open areas were probably used by the civilian population in the event of a threat. The fort covered an area of 1.2 hectares. The remains of the Late Roman hillfort were discovered around 1900 and excavated for the first time between 1907 and 1932. After a long pause, excavations were re-started in 1997 as part of the Volcano Park project. The finds were archaeologically investigated in Koblenz and the town of Mayen under the direction of the state office for cultural heritage. For the history of handicrafts the roofing finds were especially important. The roof slates found in the round towers were, surprisingly, shaped like scales, something which was rare in Roman times. In 2000, parts of the defensive wall and two round towers were reconstructed on original foundations of the walls. On the remains of the old military station on the hilltop, which had underfloor heating in the form of a hypocaust, a protective structure was built. All roofs were covered in slates in the form of scales and hexagons (for protection).

The Ettringer Bellerberg, also called the Ettringer Bellberg, is a hill, 427.5 m above sea level (NHN), forming the western flank of the Bellerberg Volcano, a volcano system that was active about 200,000 years ago.

Ettringen is a municipality in the district of Mayen-Koblenz in Rhineland-Palatinate, western Germany. The nearby abandoned stone quarry Ettringer Lay serves as a popular climbing area of the German Alpine Club (DAV) with more than 790 routes set in the basalt walls.

Sankt Johann is a municipality in the district of Mayen-Koblenz in Rhineland-Palatinate, western Germany.

The Hochsimmer is a volcanic cone, 587.9 m above sea level (NHN), in the Eifel Mountains in Germany. It rises near Ettringen in the Rhineland-Palatine county of Mayen-Koblenz. At the summit is an observation tower, the Hochsimmer Tower.

Kottenheim is a municipality in the district of Mayen-Koblenz in Rhineland-Palatinate, western Germany.

Kehrig is a municipality in the district of Mayen-Koblenz in Rhineland-Palatinate, Germany.

The Hochstein (also called the Kalberg or Kahler Berg and, formerly, the Forstberg) is a volcanic cone, 563 m above sea level (NHN), in the Eifel near Obermendig in the German state of Rhineland-Palatinate and county of Mayen-Koblenz.

Bürresheim Castle (German: Schloss Bürresheim) is a medieval castle northwest of Mayen, Rheinland-Pfalz, Germany. It is built on rock in the Eifel mountains above the Nette. Bürresheim Castle, Eltz Castle and Lissingen Castle are the only castles in the Eifel region which have never been destroyed. It was inhabited until 1921 and is now a museum operated by the General Directorate for Cultural Heritage Rhineland-Palatinate.