Iced tea made from local berries is served with melon and squares of sweet sticky rice topped with fruits and nuts. The nuns eat these sweets on head-shaving day, to replenish their energy. Ari Shapiro/NPR hide caption

itoggle caption Ari Shapiro/NPR

The wreck of a double-decker bus in central London on July 8, 2005, one day after a series of terrorist attacks on public transportation killed more than 50 people and injured more than 700. Dylan Martinez/AFP/Getty Images hide caption

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Dennis van Berkel, an attorney with the Dutch environmental group Urgenda, stands on an earthen berm on the outskirts of Amsterdam. The water is higher than the land on the other side of the berm. A Dutch court ruled in favor of Urgenda on Wednesday, saying the Dutch government must cut carbon emissions by 25 percent. Environmental groups in other countries were closely watching the case. Ari Shapiro/NPR hide caption

itoggle caption Ari Shapiro/NPR

A Bulgarian border policeman stands near a barbed wire wall on the border with Turkey in July 2014. Experts believe that about two-thirds of the heroin that enters Europe comes through Bulgaria, and that a third of that moves on to the United States. Dimitar Dilkoff/AFP/Getty Images hide caption

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Serbian protesters hold a banner that reads: "Serbia-Russia, we don't need the European Commission" on March 21 in Belgrade. The marchers were from a Serbian nationalist organization opposed to the government, which has pursued closer ties with Western Europe. Darko Vojinovic/AP hide caption

itoggle caption Darko Vojinovic/AP