Basilique de Valère, Sion, Switzerland. Sion, Switzerland is a gorgeous place dominated by what look like twin castles on nearby opposing hills. In reality one is Château de Tourbillon, a castle ruin, and the other is Basilique de Valère, a basilica and museum. It is a beautiful little city to visit and the twin hills create a view that makes the whole valley simply beautiful!

https://en.wikipedia.org/wiki/Val%C3%A8re_Basilica

https://en.wikipedia.org/wiki/Sion,_Switzerland

https://www.valais.ch/en/activities/culture-customs/castles-fortresses/the-castles-of-valere-and-tourbillon