Germigny-des-Prés is known for the Carolingian Église de la Très-Sainte-Trinité.
- Église de la Très-Sainte-Trinité (Oratoire Carolingien de Germigny), Place Bourg, ☏ . 1 April-30 Sept: 8:30 AM - 7 PM daily; 1 Oct - 30 March: 8:30 AM - 6 PM daily. This beautiful church, also called an oratoire, was designed and built in 806, during the reign of Charlemagne, and has some very well-preserved Byzantine mosaics. The church is easily visitable by individual travellers, but if you would like to have a guided tour, call 02 38 58 27 97. Free admission.