The city of bridges is a common phrase used to describe many cities across the world that have numerous bridges connecting different parts of the city. There are several synonyms that can be used to describe a city with many bridges. An alternative term could be "the bridge city," "the city of spans," or "the city of arches." Additionally, some cities are famous for a specific bridge, such as San Francisco's Golden Gate Bridge or London's Tower Bridge. These cities can also be referred to as "the home of the Golden Gate Bridge" or "the city of Tower Bridge." Overall, the term "city of bridges" encompasses several possible synonyms that can describe a city with many bridges.