This week, we're highlighting the nation's "cradle of liberty" - Boston, MA - as part of our Green City Series....

With it's stunning coast and magnificent hikes, we are so lucky that every day is Earth Day in Honolulu. Honolulu ranks one of the greenest cities in the U.S. for so many reasons. It has one of the highest percentages of green space...

AUSTIN, TEXAS- What's not to love about Austin? With 22.1 park acres per 1,000 residents and 13.1 miles of bike and walking trails along the hip Barton Creek Greenbelt, this city has a fun eco-vibe that makes people want to come back again...