In this week’s Discovery newsletter, we find a hidden treasure in a Spanish church, learn if love really is a drug, figure out if you can get bird flu from eggs ... and travel to a cheese powerhouse in a lactose-intolerant nation. Oh, and who should we thank for all these Valentine’s Day flowers?

 TURISMO LLERENA 

Five hundred years ago, Arabs, Jews, and Christians prospered together in this Spanish town—and painted. After centuries, restorers have found Renaissance treasures in a church here, with touches that were hidden by time.

 SCALA FLORENCE 

JARUTAT SNIDWONGSE/JARTISANN 

Did you know? This country, in which more than 98 percent of the population is lactose intolerant, is now producing some of the world’s best cheese. Where are we?  

A. China
B. Indonesia 
C. New Zealand
D. Thailand
E. Turkey

Related: This scientist is unlocking the mystery of cheese

Revealed: What’s in the world’s oldest cheese?

Today’s Soundtrack: Come and Get Your Love, Redbone

Today’s newsletter was edited and curated by David Beard and produced by Alisher Egamov. Sign up here to get tomorrow’s Top Ten stories of the week or catch Sunday’s Photo of The Week.