an inside look

Last week I went on a guided tour of the "underground" of the château here in Amboise.  We got to see some very dark and deep places that one cannot see with the regular entry ticket.  This shot is the inner core of the tower Minimes (seen here from the outside).  It was constructed so that horse-drawn wagons and carriages could climb a spiral ramp from street level up to the château.  To me it has a cathedral-like look on the inside with all those arched openings.