The designation was awarded by a London-based charity that aims to make cities more like national parks: "greener, healthier ...

Chattanooga has come a long way from being one of the most polluted cities in the country to the U.S.’s first National Park ...

What makes for a great urban park? Today's video explores that questions, then scans the continent of North America, looking for the very best. Our journey will include some obvious stops -- New ...