The Venice Simplon Orient Express runs between Paris and Venice.
Orient Express: More than a collection of the best luxury hotels, trains, resorts, restaurants, river boats, safaris and travel experiences in the world. What makes travelling special? Is it the places we visit? The way we get there? The people we meet along the way? We believe it's the collection of unique experiences: the delightful, the unexpected, the authentic, the meaningful. You might think of it like this... Orient Express is an invitation, the start of an intriguing conversation. It's a door that's just ajar: It only takes a little curiosity to push it open and discover something richly interesting inside.
https://www.orient-express.com/