Learn how the Michigan Trails and Greenways Alliance uses Google Map Maker to add new cycling routes around the city of Detroit, creating a more comprehensive map and improving biking directions for the entire community.

http://mapmaker.google.com

A demonstration of Google Wallet’s security features, including the mobile app PIN, and the ability to remotely disable and reset your mobile wallet from wallet.google.com/manage

A demonstration of the Google Wallet online service, and how you can pay online by signing into your account anywhere Google Wallet is accepted.

A demonstration of the Google Wallet mobile app, and how you can pay in-store by tapping your phone anywhere contactless NFC payments are accepted.

Sometimes the best answer to your question is not always a single entity, but a list or group of connected things. Now, with the Knowledge Graph, Google can answer these questions, too, with a new interactive carousel at the top of your results page. Learn more at g.co/knowledge

Photographer John Butterill discovered a way to share his photo walks through Google+ Hangouts. Almost immediately photographers around the world began volunteering to share their view of the world with people whose mobility was limited.