http://en.wikipedia.org/wiki/File:Clifton_Suspension_Bridge-9350.jpg

http://en.wikipedia.org/wiki/File:William_Bridges_design_for_the_Clifton_bridge.jpg

http://en.wikipedia.org/wiki/File:Cplaque.jpg

http://en.wikipedia.org/wiki/Clifton_Suspension_Bridge

http://en.wikipedia.org/wiki/File:Avon_gorge_and_cave_arp.jpg

http://en.wikipedia.org/wiki/File:Clifton.bridge.arp.750pix.jpg

http://en.wikipedia.org/wiki/File:Suspension_bridge_at_Clifton.jpg

http://www.eltesorodelajuventud.com/Cosas-que-Debemos-Saber/Celebres-Puentes-Colgantes.php

Puente sobre el Avon