Brazil, lack of sprinkler system confirmed:

To read more on MSN:

https://www.msn.com/en-ca/news/world/brazilians-see-metaphor-for-their-struggles-in-museum-fire/ar-BBMNmA7?li=BBnbcA1

To read more on The Daily Mail:

http://www.dailymail.co.uk/news/article-6125217/Giant-flames-tear-National-Museum-Rio-Janeiro.html