Sam and companions traveled from Lecco to Bergamo where they caught the train for Venice, July 20, 1867. Mark Twain Project: Quaker City Itinerary.

From Bædeker:

Camnago-Lentate railway station is a railway station in Italy.

Sesto San Giovanni railway station is a railway station in Italy. Located on the Milan–Chiasso railway, it serves the city of Sesto San Giovanni.

The name of the place is probably to be linked to the expression (in Lombard language) cà merlada, that is "house with battlements". According to Cesare Cantú the first settlement dates back to a fort erected during the wars between the Romans and the Insubri. [without source] The ruins were found and rebuilt by Luitprando, Gothic king. [who? maybe King Liutprand? but he was Lombard, not Gothic...] But its last reconstruction was made by Frederick Barbarossa who erecting new crenellated walls gave the place the name it still bears today.

In Paris they had stayed at the Grand Hôtel du Louvre, a “huge, palatial edifice” of seven hundred rooms on the Rue de Rivoli between the Louvre and the Palais Royal (Bædeker 1872, 4).

SLC to Jane Lampton Clemens and Family, 12 July 1867, Marseille, France (UCCL 00140), n. 1.