The name of the town, Nihonbashi, means Japan Bridge in Japanese. It houses the famous Nihonbashi bridge that was originally built back in 1603. By the bridge, there is a point called kilometer zero where the roads start in Japan.
In Nihonbashi, there are old shops and restaurants that still remain from the Edo Period. If you want, you can take a ferry boat and enjoy a cruise down the river. Machi Nihonbashi is a link to learn more about Nihonbashi.
Mitsukoshi Department Store started in Nihonbashi.
The HQs of Mitsui Sumitomo Bank.