St John's College : The Bridge of Sighs

It was built in 1831 and crosses the River Cam between the Third Court and New Court. It is named after the Bridge of Sighs in Venice. 

The Bridge of Sighs

The view from the Kitchen Bridge

The Bridge of Sighs in Venice

I don't know why the bridge was so named as the only similarity between the two Bridges of Sighs is that both of them are covered bridges.