An Iowa town celebrates its heritage with the tallest working Dutch windmill in North America.

A bizarre house filled with an astounding array of collections.

The oldest house in Galena, Illinois, now is a reminder of when this city was the world's lead mining capital.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

The Iowa state contender for largest pan in the world oddly only comes in second or so.

No one knows the origin of this small town’s unique name.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

Remnants of a quarry company town still stand on the banks of the Wapsipinicon River.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.

The World's Largest Bull.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This stunning concert hall has become a symbol of Iceland's national recovery.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

This black church sits alone among a field of lava rock.

This mountain fissure hides a secret path to a secluded mossy grotto within the rock itself.

A sulfuric martian landscape that looks far better than it smells.

Three columns of volcanic rock shoot out of the ocean.

This tiny museum's sizable collection is jammed into a former underground public toilet.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

The most powerful waterfall in all of Europe.

This elegant arc of a waterfall marks a religious turning point.

Rising from the sea like a stone monster.