The document discusses four ideas for converting churches: 1) Into museums, such as a garden museum in London. 2) Into libraries, like one in Zwolle, Netherlands and another in Quebec, Canada. 3) Into cafes or restaurants, for example one in Maastricht, Netherlands and a restaurant in Antwerp, Belgium. 4) Into homes, including conversions in Rotterdam, Netherlands, another in the Netherlands featuring a swing, and a home in London, UK.