When a couple gets married, a padlock on a bridge is a way to symbolize that eternal union.
Engraved locks of eternal love. Baraskit.
..when couples get married they put a padlock on the bridge as a symbol of their commitment to each other.
From one end to the other, nonstop padlocks on this bridge here.
Image courtesy of http://www.baraskit.se/random/archive/170/padlocks_on_bridges.html.
See:
Quipster 
A VERY cool and quirky site, Crier.
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There’s a pie with your name on it at http://pie2012.wordpress.com/.
Pie??????? Yum!!!!!!!!!!!! Fuel for the funny bone. Thx, NES!