A plug for this app: https://play.google.com/store/apps/details?id=com.nianticproject.scout&hl=en (I believe it is available for other devices). I have had this installed on my 'phone for the last couple of weeks. Once you have tailored your personal preferences it is a really interesting "companion" to your daily meanderings. It offers a mine of information about places and buildings I have walked past for years without a second glance - it draws your attention to the "hidden corners" of the world around - hidden, that is, in plain view. Well worth the price (free). Enjoy.