The Felsenkirche, a church built into a natural niche in the rocks, rises high above the houses of Oberstein.
Wyrich IV. of Daun-Oberstein had it constructed in the years 1482-1484. Behind it, a wall of rocks rises steeply upwards; and under it, the houses of Oberstein nestle into the slope. On account of its prominent location, the church has become a symbol of the city. Where else is there a church that can only be entered through a tunnel which was dug into the rocks (1980-1981)?

The church's greatest treasure is the medieval winged altar. It was created around 1400 by an unknown painter, the "Master of the Mainz Mocking".

More works of art:

• epitaph of Knight Phillip II of Daun-Oberstein, father of the church's builder, †1432
• Sebastian painting, approx. 1570, depicting the family of the Count Sebastian of Daun-Oberstein-Falkenstein
• Apostle paintings, 17th and 18th centuries
• fragments of late Gothic glass windows, which were badly damaged by falling rocks in 1742
• baptistery, from 1500
• rock crystal crucifix
• naturally-occuring agate cross from Brazil
• Müller organ, 2002, built into the original Stumm organ's encasing. A small figure, the "Penitent", appears on the left hand side of the organ. It depicts the church's erector Wyrich according to the legend.