We’re asking you to look at a painting you’ve probably seen before: “The Starry Night ” by Vincent van Gogh. (Sign up here to be notified about future challenges, which are published on ...

The National Gallery will stay open overnight on Friday, January 17, but night owls should act fast. Tickets for timed slots between 9 p.m. that evening and 10 a.m. the next day have been on sale ...