Smokestacks near an oil refinery are seen in front of the Utah State Capitol as an inversion settles over Salt Lake City.
Jigsaw puzzles gain popularity with those of all ages.
Hippos stay submerged in a lake
Workers wearing protective gear
NASA mathematician Katherine G. Johnson
Equal Rights Amendment supporters
Commuters wearing face masks
Democratic presidential candidates
Ousted former Egyptian President Hosni Mubarak
To leap is to jump