Caliente Railroad Depot and Boxcar Museum

The Caliente Railroad Depot and Boxcar Museum, located next to each other, are a testament to the town's railroading past. The depot was built by the Los Angeles and Salt Lake Railroad in 1923 to serve as a stop on its main, a maintenance facility, and hotel. The is why it is a rather large building. The museum is located next to the building and there are vintage passenger cars on display.

The building is designed in the Mission Revival style. The company offices and facilities were on the first while and the hotel on the second. Once diesel locomotives started to be used, the company no longer needed the station. To save it from being demolished, the city acquired it which then renovated the interior so that it could house the city hall, library and an art gallery. 

https://en.wikipedia.org/wiki/Caliente_Railroad_Depot