The solid walls of Castillo de la Alameda have helped it withstand the test of time. Take in the architectural features of this majestic structure from a distance or see if there are any tours.
This fortified complex in Barajas comes recommended by travelers, so be sure to put it on your schedule. Don't think that's all there is to do here, though. There are a lot more attractions ready for you to explore after Castillo de la Alameda. Prado Museum, Santiago Bernabéu Stadium, and El Retiro Park are not far away.