As part of her exercise routine, Curtis starts most mornings walking a gaggle of neighborhood toddlers to their day care. Tovia Smith/NPR hide caption

Constance Hockaday, the creator of the Boatel, stands under the sign announcing her art project/hotel at Marina 59 on Jamaica Bay in Queens, New York. Jon Kalish hide caption

Larry Holzman does a series of eccentric wrist exercises using a rubber bar called the Thera-Band FlexBar. Maggie Starbard/NPR hide caption

Last month, President Obama became the first sitting president since Kennedy to visit Puerto Rico — one of many recent events to reach out to Latinos. Saul Loeb/AFP/Getty Images hide caption

James Kennedy, an amateur collector, found this fossilized bone with a mammoth or mastodon engraving in Vero Beach, Fla. It has been identified as one of the oldest pieces of prehistoric art in the Western Hemisphere Chip Clark/Journal of Archaeological Science hide caption