Urban parks are less senior-friendly than you might think

9 unforgettable urban waterfalls

Brooklyn's Prospect Park enlists goats for weed-removal duties

Philadelphia's parks are getting the Google Street View treatment

Off limits since 1934, a secret nature sanctuary reopens in Central Park

In Virginia, a Stonehenge built from foam seeks a new home

Native people built seashell islands off Florida

10 parks that have shaped American cities

Winner of skyscraper design competition digs down instead of building up

How to share Earth with other animals

The Mile is an urban park thrust 5,280 feet into the atmosphere

Meet the beautiful botanic garden that has some Houston residents seeing red, not green