Around and around it goes. Have you visited Zoo Lights at the National Zoo? It’s basically a Twilight Zone zoo full of lit-up dinosaurs and creepy man-pandas trapped in snow globes, and yet pretty fun nevertheless. Photographer Marcos took some time practicing shortish long-exposures in front of the carousel, which seems a good enough reason for any of us to go. Zoo Lights is closed tonight, Christmas, and New Year’s Eve, but will otherwise be open 5 to 9 p.m. through January 1; admission is free.