Icehotel is located 120 miles above the Arctic Circle. The temperature outside is well below zero, but inside the hotel — while still, of course, below freezing — it's much warmer, hovering in the low 20s. Ari Shapiro/NPR hide caption

itoggle caption Ari Shapiro/NPR

The stars of Parenthood include, left to right, Erika Christensen Peter Krause, Bonnie Bedelia, Craig T. Nelson, Lauren Graham and Dax Shepard. NBC/Justin Lubin/NBC hide caption

itoggle caption NBC/Justin Lubin/NBC

Laura Ingalls Wilder entertained generations of children with her Little House series, which was loosely based on her family's pioneering life. Her memoir, Pioneer Girl, was published in 2014. South Dakota State Historical Society hide caption

itoggle caption South Dakota State Historical Society

Bradley Cooper (right) plays Chris Kyle in American Sniper. The film has become a cultural phenomenon and has spawned knee-jerk squabbling. Courtesy of Warner Bros. Pictures hide caption

itoggle caption Courtesy of Warner Bros. Pictures

Research into how the human brain develops helps explain why teens have trouble controlling impulses. Leigh Wells/Ikon Images/Corbis hide caption

itoggle caption Leigh Wells/Ikon Images/Corbis

Marie Mutsuki Mockett says the Japanese tradition of Tōrō nagashi — lighting floating paper lanterns in honor of loved ones — reminded her that she was not alone in her grief. Alberto Carrasco Casado/Flickr hide caption

itoggle caption Alberto Carrasco Casado/Flickr

Bob Belcher, titular hero of Bob's Burgers, bites into one of his creations. Each episode features daily burger specials with chuckle-inducing names. The burgers were born in the show writers' imagination and brought to life in Cole Bowden's kitchen. Fox/via Getty Images hide caption

itoggle caption Fox/via Getty Images