A split image shows Allen Ginsberg in 1953 and 1967. Allen Ginsberg LLC/Corbis | The National Portrait Gallery hide caption

itoggle caption Allen Ginsberg LLC/Corbis | The National Portrait Gallery

The "elephant in the room" is something obvious that can't be overlooked, even if no one is talking about it. The phrase was in use as early as 1935. iStockphoto.com hide caption

itoggle caption iStockphoto.com

In his new book, The Vatican Diaries, John Thavis draws on his nearly 30 years of reporting on the Vatican. Viking/Penguin Group hide caption

itoggle caption Viking/Penguin Group

Attendees browse books on offer at the fourth annual Karachi Literature Festival. Muhammad Umair Ali hide caption

itoggle caption Muhammad Umair Ali

The Heart of Thomas, by Moto Hagio, was one of the first Japanese comics to deal with same-sex relationships. Fantagraphics hide caption

itoggle caption Fantagraphics

Iambic pentameter, a type of poetic line which Shakespeare often wrote, appears on Twitter as well. A program called Pentametron collects such tweets and turns them into poetry. Source image: AP hide caption

itoggle caption Source image: AP

An image from "Detroit Disassembled," an exhibit on display at the National Building Museum. (Andrew Moore, The Aurora, Brush Park neighborhood, 2008) Andrew Moore/National Building Museum hide caption

itoggle caption Andrew Moore/National Building Museum