The sensational architecture of the Catholic St Paul's Church in Ingelheim-West stands for a completely new type of place of worship. This extraordinary church building by the Swiss architect Justus Dahinden stands for Ingelheim's cosmopolitan present. The new church building with adjoining congregation and youth rooms was planned under Pastor Helmut Sohns (1935-2018). At the end of the 1970s, the renowned Zurich architect and professor Justus Dahinden (1925-2020), who worked all over the world, was commissioned with the planning. He sees architecture as a "service for the whole person". He developed a "philosophy of the slant". The tilting of the façade into the slopes, which characterises the construction of St. Paul's, thus reduces the feeling of threat in order to achieve a harmonious human-space relationship. Following an important concern of the Second Vatican Council (1962-1965), Dahinden planned an open space in which the worshippers are grouped around the central "people's altar" (versus populum). A geometric, almost futuristic simplicity prevails in the church interior of St. Paul's Church, which was consecrated by Bishop Cardinal Volk in 1981. Many walls are constructed at an angle, which, according to Justus Dahinden, makes something wonderful happen: "The sky opens up!". The fascinating exterior façade of St Paul's is also characterised by this simplicity. The interior of the modern and deliberately unadorned church, which emphasises simple geometric forms and comes across as sober and without much pomp, contains a Klais organ (1997) and three sculptures (2012) by the Mainz artist Rheinhold Petermann: a 2-metre-high St. Paul, a delicate 60-cm-tall Madonna and a crucifix pointing to the Resurrection, as well as a futuristic-looking tabernacle. 12 concrete crosses recall the 12 apostles; above them are sconces, also called apostle chandeliers. St Paul's sees itself as an open, approachable place of encounter with a sustainable concept in a fruitful ecumenical and interreligious dialogue.