Plains of ash and pair of semi-active volcanoes contribute to the otherworldly beauty of this little-known Vanuatu island.

The best place to encounter plants and animals that can only be found in New Caledonia.

The most southerly spot on New Zealand's South Island is home to surreally shaped, permanently mangled trees.

The largest collection of medicinal plants in Australia is also home to a witch who will show you how to use them.

Final resting place of the most prolific Fijian cannibal of all time.

Megapodes incubate their eggs using the heat of an active volcano on this Pacific isle.

This volcanically volatile island town is home to an abandoned series of tunnels left by the Japanese during WWII.

Tubing through a cave lit with glowworms is a magical underground experience.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.