So they won't accuse you of going to Madrid for just the bars and parties... we'll treat you to museum tickets.
Yes, museum tickets - since we know athat talking about "the last exposition in this or that museum" always sounds good.

Reserve our Free art! and for each two night stay in any of the 3 chic&basics in Madrid we will include you two tickets for the Thyssen-Bornemisza, Prado and Reina Sofia museums. After seeing the museums you will then be free to enjoy your drinks and parties in the city and impress whoever you meet with your artistic knowledge... You are sure to make the most of it.

Before booking Free art! please note that Thyssen-Bornemisza and Prado are closed on Mondays, 01 and 25 May and 25 Dec.
Reina Sofia is closed on Sunday afternoons as well as on Tuesdays, 01 and 25 May, 09 Nov and 24,25 and 31 Dec.