There is one bridge in Amsterdam from which you can see 14(!) other bridges, 15 if you include the one you stand on.

This is the bridge crossing the Reguliersgracht on the corner of Herengracht, you stand on the odd side of Reguliersgracht.

With your back to Thorbeckeplein, you can see 6 bridges looking along Reguliersgracht, 6 bridges looking to your left over the Herengracht, and two more if you look to the right.