It is one of the oldest churches in Paris - and a stunning confluence of Gothic and Romanesque architecture. St Germain des Prés is both home to an ancient abbey and is still actively used as a place of worship. It's walls and remarkable pillars attest to its remarkable history and pride of place as one of the city's most enduring pieces of historical and religious significance.
It also happens to be where Rene Descartes 'lies in repose'...