Eva Marie Saint and Cary Grant in Alfred Hitchcock’s “North by Northwest” in 1959. She said some of the easiest work in her entire professional life involved the many retakes required to film their kissing scenes.

A water treatment plant in Georgia earlier this year. Officials have long warned that the nation’s roughly 150,000 water treatment systems are relatively easy targets for hackers.

President Trump’s two vetoes were the first of his second term.

A section of Hadrian’s Aqueduct in Athens. Its 15-mile network runs beneath the city and is still functional.

The Ain Dubai, an observation wheel, rises above an artificial island in Dubai. The construction of Dubai’s islands is putting stress on the Persian Gulf.