Mid adult woman standing on London Bridge, using smartphone, London architecture in background

Mid adult woman standing on London Bridge, looking at view, rear view

Mid adult woman,outdoors, wearing headphones, looking down

Mid adult woman,outdoors, wearing headphones, looking down

Mid adult woman, outdoors, wearing headphones, looking down

Female tourist in London, photographing view, using camera

Female tourist leaning on wall, photographing London view

Female tourist in London, looking at images on camera screen, smiling

Female tourist in London, looking at images on camera screen

Mid adult standing in front of brick wall, holding sign with 'London' written on it

Mid adult sitting outdoors, writing 'London' on small backboard

Mid adult sitting outdoors, holding small backboard sign with the words 'Thank you' written in it, mid section

Female tourist, looking over railings at Covent Garden, London, England

Female tourist, at souvenir stand, choosing souvenirs, smiling

Female tourist, standing beside souvenir stand, using smartphone

Female tourist standing on London Bridge, photographing view

Scientist testing electrical cable in electrical cable laboratory

Scientist testing electrical cable in electrical cable laboratory

Scientist testing electrical cable in electrical cable laboratory

Scientist testing electrical cable in electrical cable laboratory