Haram can mean both prohibited and holy. See http://www.islamic-dictionary.com/index.php?word=haram

Word Meaning
Haram (حرام)
Grammar: word;
(1) Prohibited, illegal. Mostly used in referance to actions as well as foods.
(2) Sacred/Holy - as in Masjid al-Haram (The sacred mosque) in Mecca and within it is the Kaaba.