Here's yet another reason to visit San Francisco: The City By the Bay has just launched a free Wi-Fi network that extends through many public spaces, such as parks and museums.And it's not the only urban center jumping on the Wi-Fi bandwagon. Lothian Buses, the main public bus company in Edinburgh, Scotland, began rolling out free Wi-Fi on its buses this summer. That means visitors to Edinburgh, its airport, and the surrounding area can plot their routes on Google Maps or browse Yelp restaurant recommendations without having to sacrifice transit time.

But you don't have to go to Silicon Valley or Scotland if you want free Wi-Fi access while you travel. Here's a list of other towns and cities who also have the hookup.