California residents, Heidi Nunes-Tucker, 40, and Jared Tucker, 42, were celebrating their first wedding anniversary when they decided to visit a friend in Barcelona.
Thousands of counter-protesters marched in Boston to confront right-wing "free speech" demonstrators on Saturday after the deadly white nationalist rally in Virginia last weekend.
One police officer was killed and five others seriously wounded in three separate shootings in Florida and Pennsylvania late Friday.
A train came off the tracks in India's northern state of Uttar Pradesh on Saturday, killing at least 14 people and wounding dozens more as carriages slammed into each other, a local official said.
A 25-year-old U.S. citizen has been charged with using a drone to smuggle more than 13 pounds of methamphetamine from Mexico by drone.