Feature photo: The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. "Metropolitan Museum of Art, New York, N. Y." New York Public Library Digital Collections. Public Domain. Photos used above from left to right: Jean-Pierre Dalbéra. "Visiter le Louvre en été !" July 12, 2010. Flickr. CC BY 2.0.; Boston Athenaeum. "The Art Room, 1905." The Athenaeum Centenary. 1907. Wikimedia Commons. Public Domain. ; Maurizio Pesce. "Razer OSVR Open-Source Virtual Reality for Gaming." January 10, 2015. Flickr. CC BY 2.0.