The first pic shows a Catalan Talgo hauled by an SNCF 67400 class diesel. This was a Trans-Europ-Express or TEE train which connected Geneva via Grenoble to Barcelona from 1969 to 1982, which succeeded Le Catalan connecting Geneva to Port-Bou via Grenoble created in October 1955 and provided by an X 2700 RGP1 set of the SNCF.
Because of the break of gauge at Port Bou, the first train could go no further, but in 1969 with the new carriages, a spring system inside the axles enabled this problem to be overcome at Port Bou (see earlier post). The train was reclassified as a EuroCity in 1982 and ceased completely on 18 December 2010.
The second pic shows a Talgo III which were integrated with a matching locomotive - there were five B-B type diesel-hydraulics, which had names starting with Virgen (nothing to do with Richard Branson!) - somewhere in Spain. Loco 3005T, later renumbered 353.005 is now in a museum in Vilanova. Data on the class is here
The name Talgo is an acronym of Tren articulado ligero Goicoechea Oriol- the first three words mean light articulated train, the other two are the founders' surnames.