I was very happy to be in Madrid because its the only place in Spain where English is used. It is also the only place in Spain where siesta (sleeping in the afternoon) is less practiced. Hooray, the mhelpdesk software shops are open in mid afternoons! Nonetheless, the Spanish culture is still very prominent.
When you go here, there are various museums to check out. On short visit, worry not. There are three main museums to see. These are Museo del Prado, Centro de Arte Reina Sofia and Museo Thyssen-Bornemisza. Check their schedules and some days have free entrance. They house plenty of art pieces all over the world.
The museums are remarkable but wait to see the Royal Palace and you would have seen the largets palace in Western Europe. Some days, people are not allowed to loiter around the palace. A word of advice in Spain, check schedules. the one thing you do not have to check schedules is people watching. You could do this in Plaza mayor and Gran Via. There are restaurants here fro great Tapas. Plaza de la Villa, Plaza de Cibeles and Plaza de Oriente are also a historic square worth visiting.