Nature Preserves

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

This underwater cave in Madagascar is home to what is thought to be the country's largest fossil graveyard.

An eerie, protected forest of old-growth oak trees, many of which are now dead.

This large sand dune in the Netherlands is home to wind-whipped trees with "floating" roots.

Where a rare geological phenomenon created a section of rock that resembles a checkerboard.

An archaeological treasure trove towers over the valley of Chiavenna.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

One of the most remote lodges in the Amazon offers rare wildlife encounters and undisturbed views of the Peruvian rainforest.

The span is crooked and made from two older recycled bridges.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

Granny Smiths and Fujis can both be traced back to Kazakhstan, where apples still grow wild.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

One of the most remote spots in America and the first protected wilderness area in Nevada, named after an old legend.

The rustic think-space of famed naturalist John Burroughs stands exactly as he left it.

A no-frills, DIY nature preserve manned by a U.S. expat who has dedicated his life to turtle conservation.

A seemingly desolate park that belongs to two countries actually supports all kinds of wildlife.

An industrial site turned into Hungary's most cherished natural wonder.