A giant concrete orb in far north Iceland marks the ever-shifting boundary.

Two volcanic lakes in an enormous crater formed in a prehistoric eruption.

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

The oldest steel ship in Iceland has been beached for years and is now a rusting ruin.

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

Three million year old fossils are exposed for all to see on this Icelandic shore.

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.

Surrounded by ash fields in Iceland, an impossibly verdant valley looks like something out of a fairytale.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

The oldest church in Iceland is one of the few to feature ornate decoration.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

A little-visited waterfall in an otherworldly landscape.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

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

A winding, blood-red tunnel of hardened lava navigable by foot.

Climb right into the heart of this colorful Iceland volcano.

The most powerful waterfall in all of Europe.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

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

Iceland's largest lagoon is home to stunning multi-colored icebergs.