An ingenious Dutch land art project uses grass ridges to cut airport noise pollution in half.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

Quite simply the largest tree in the world (by volume).

The world's largest maze is a nature park with nearly 200 decision points.

A Buddhist temple to honor insects that died for science.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

Cold storage for agricultural biodiversity.

One thousand trees were planted in Norway to be used to print books a century from now.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

A ghost town at the airport is now a refuge for blue butterflies.

This nature center has one of the largest collections of native raptors in the Pacific Northwest.

Repository for more than 22 million pickled specimens.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

The longest living non-clonal organisms on Earth.

Stroll through a wonderland of stupendous moss-covered trees.