A museum worker carries a 19th century painting by Polish artist Robert Sliwinski during a ceremony Wednesday in Warsaw, Poland. The work was looted by the Nazis during World War II and recently recovered in the U.S. by the FBI. Alik Keplicz/AP hide caption
A Google doodle from earlier this year commemorated the 100th anniversary of the Silent Parade, during which almost 10,000 African-Americans marched in New York City to protest violence against African-Americans. Google hide caption
Gray Zeitz at his 1915 Chandler & Price printing press. Noah Adams/NPR hide caption
Hari Kondabolu is the writer and star of the new documentary "The Problem With Apu." AP hide caption
Franco-Tunisian fashion designer Azzedine Alaia poses during an exposition of Britain's artist Richard Wentworth photographic work on fashion design on Sept. 7, 2017 at the Maison Alaia in Paris. Francios Guillot/AFP/Getty Images hide caption
MIT's Atlas robot, nicknamed Helios, completes the driving task at the June 2015 DARPA Robotics Challenge Finals. Helios is a second-generation Atlas, developed for DARPA by Boston Dynamics. DARPA hide caption
Salvator Mundi is one of only a score of Leonardo da Vinci's works still in existence and the only one held privately. Kirsty Wigglesworth/AP hide caption
A man stands in front of a projection of the virtually recomposed painting The Enchanted Pose by René Magritte at The Royal Museums of Fine Arts of Belgium on Tuesday. Emmanuel Dunand/AFP/Getty Images hide caption
The show celebrates the Gothic cathedral's role in French history as well as the end of the First World War. Christophe Ena/AP hide caption
Madga Sayeg's artwork in Mexico City, Mexico Courtesy Magda hide caption
Vincent Van Gogh's Olive Trees, made with oil on canvas in 1889. See the shadow cast by that small tree on the far right side? There's a grasshopper lurking in that shade. Courtesy of the Nelson-Atkins Museum of Art hide caption
Left: Johannes Vermeer's Lady Writing, 1665. Right: Caspar Netscher's Woman Feeding a Parrot, with a Page, 1666. National Gallery of Art, Washington hide caption
Obama poses with a boy who fell asleep during the White House's Father's Day ice cream social on June 14, 2013. Souza remembers the president calling out, "Pete, you've got to get a picture of this." Pete Souza/Courtesy of Little, Brown and Company, New York hide caption
Leonard Pickel's design and consulting company has created fright sites for clients all over --from New York City to Australia. Leonard Pickel hide caption