Teen finds 7.44-carat diamond at Arkansas park

Development threatens Beirut's largest swath of public parkland

What do those cemetery symbols mean?

Americans are quietly preserving 56 million acres of private land

In typical Texas fashion, urban nature park in Dallas would be country's biggest

Why would militants take over a wildlife refuge?

Father-daughter duo find 2-carat diamond in Arkansas state park

Washington, D.C.'s winning 'Memorial for the Future' is as sobering as it is beautiful

Wild manul cubs caught on video in Mongolia

The ambitious plan to 're-stitch' Atlanta's urban core

Minneapolis launches public kayak-share program

Lucille Ball Memorial Park gets the non-terrifying statue it deserves