The largest source of fossilized insects anywhere.

Acres of natural wonders left behind by a socialite-turned-gardener.

Rusty industrial city full of oxidized distillation towers.

This sun-scorched lakebed contains samples of half the natural elements known to humankind.

A mysterious and endangered parasitic herb from the California desert.

A lake formed in the basin of a massive impact crater takes the shape of an unbroken ring when viewed from above.

The third-largest island in Canada is one of the remotest places on Earth.

These hellish-looking cliffs in the Canadian Arctic have been burning for centuries.

The antique barns in Cameron are not painted with your grandfather's Mail Pouch Tobacco murals.

Rural churches in the middle of nowhere with religious frescoes by famous artist.

The world's largest set of the ten commandments lay nestled in the heart of the Great Smoky Mountains.

Step past the gas pumps and into a fine French bistro.

According to local lore, this narrow passageway through two large rocks was accidentally created by the devil himself.

This 5-by-6-foot wooden hut is the smallest historic post office in the U.S.

A curious whirlpool formation supposedly capable of entangling or engulfing branches, tree trunks, or whole rafts full of hapless tourists.

America's silhouette includes 100 square miles of wilderness jutting into Canada thanks to an old mapmaking error.

This pebble beach is so beautiful that taking its rocks is against the law.

On the shores of Lake Superior, a small group of monks makes sacred sweets.

A monument celebrating the idea of reaching inaccessible places.

The highway's southernmost spot is a beloved local attraction.

This refurbished gas station is one of the oldest in Texas, located on the original Route 66.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

One of few vertical lava tubes in the world accessible by foot.

A meditative space out of a fantasy story.