4 extra days in Spain

Segovia, Avila and Salamanca are close to Madrid and well worth seeing. If you choose Sevilla, Cordova is worthwhile and close( about 1 hour away). Sevilla and Grenada are also possible - but the most driving of these three choices.

I'm going to assume your time in Madrid will include a trip to El Escorial and the Valley of the Fallen. If not, worth a serious consideration. You could do all the above if one day in Segovia (plenty of time for that location) and three days to do Sevilla & Granada doesn't feel like a rush to you. Segovia's cathedral on a Sunday would be a real treat. Take notice of the hanging red cardinal's hats over their respective tombs. Then enjoy the roman aqueduct and the Alcazar...be sure to climb the tower. Sevilla and Granada (be sure to make reservations for the Alhambra...a must!) can comfortably be covered in three days. You'll want to be back in Madrid Wednesday night, though (under 3 hrs back to Madrid from Sevilla via AVE). Have a great time!

go to granda. just spent four days there in march. highlight of the trip, which included madrid, barcelona, toledo, as well as granada. the alhambra is amazing, the moorish albayzin is so cool. train connectivity to madrid is quick, though times are limited. have fun be safe.

I would recommend spedning three days in Andalucia (Sevilla, Granada, Ronda and any 'Pueblos Blancos' in between). Please google those sites for details. They'll make you vacation more memorable plus seeing the country side along the way will give you a better idea of what 'Spain' is. Buen Viaje!