Washington's biggest lava tubes get all the glory, but this tight squeeze near the state's most famous volcanic cave is worth ...

Steady volcanic activity continues to approach the iconic Blue Lagoon resort on Iceland's Reykjanes Peninsula, following the ...

Take a winter road trip from Iceland’s second city, Akureyri, through a northern peninsula framed by fjords and punctuated by ...

Take a winter road trip from Iceland’s second city, Akureyri, through a northern peninsula framed by fjords and punctuated by ...

Deep in Central Oregon lies a short yet unnervingly narrow lava‑tube hike full of basalt corridors and tight passages where ...

Immersed in Iceland’s remote moonscapes, Hotel Húsafell is about two hours outside of Reykjavík, flaunting dark night skies ...