When people talk about hubs of technology, they’re usually talking about the West Coast. But did you know D.C. is pretty wired, too? If you need proof, just head to sites like the International Spy Museum or Mount Vernon, where high-tech exhibitions pull you into other worlds. Read all about how the capital’s gone digital on page 14. This month also has us seeking respite from the heat, and we’re finding it down by the river with fun water activities and in shops for ice-cold bubble teas and unique smoothies. Turn the page and follow us as we make the most of summer’s final days in the District.