The parish of St. Genovefa surrounds Obermendig, the upper part of the city, which was first mentioned in 1041. In 1365 the construction of a three-aisled hall church began and St. Genovefa and St. Laurentius consecrated.
The baroque church was built in 1727 as a hall building made of plastered quarry stone. After the population in Weiler grew steadily until 1906, plans for a church expansion were drawn up by baumeister Rüppel from Bonn. The church was to be extended with basalt stones by the addition of a transept and a choir room in neo-Gothic style, along with sacristy buildings. In 1909 the "new" church could be solemnly consecrated. Particularly worth seeing is the Marienaltar, which was taken over from the "old" church.
Powerful natural forces created these unique natural beauties. The "eyes of the Eifel", as they are commonly known, shimmer deep blue and captivate their visitors.