Here are photographs from early May 2002 of the (under construction and about to open) Nuevos Ministerios station:
Nuevos Ministerios Airline Counters
Nuevos Ministerios 2
Nuevos Ministerios 3
Nuevos Ministerios 4
Nuevos Ministerios 5
Nuevos Ministerios 6
Nuevos Ministerios 7
Linea 8 innauguration 1
Linea 8 innauguration 2
Linea 8 innauguration 3
Linea 8 innauguration 4
Linea 8 innauguration 5
Linea 8 innauguration 6
The Communidad de Madrid executives
Construction site on Line 10. The picture was taken when the northbound tunnel from Alonso Martínez Station and the southbound from Gregorio Marañón met.
Following is a link to the scanned text of the December, 1998 supplement to World Tunnelling. This posting is by permission of Mike Smith, HND (Mining), Editor of the journal, as relayed by Prof. Dr. Manuel J. Melis.
The issue is titled "Madrid Metro: a Story of Success".