Smithsonian Magazine on MSN

The History of America Flows Through the Hudson River, and the Country’s Aquatic Superhighway Is on the Rebound

The bucolic river is famous for reversing its current a few times each day. Now, an ongoing cleanup effort is reversing ...

A guerrilla gardener installed a pop-up wetland in the LA River. Here's how — and why

Well-meaning city dwellers forgo permits and official procedure to rewild urban areas across the country. In downtown LA, ...