A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

Handcrafted thermal spa washes away each night with the tide.

The once and future home of New Zealand's famed Pink and White Terraces.

Highly spherical boulders on the shores of New Zealand.

The explorer Captain Cook may have named it White Island, but the Maori call it Te Puia o Whakaari – The Dramatic Volcano.

Deadly scalding and one of the largest hot springs in the world.

A galaxy of glowworms—larvae of a gnat—hides deep in the belly of these caves.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

The glacier tucked within a New Zealand rainforest.

A Maori village obliterated by an 1886 volcanic eruption.

A perfect turquoise lake colored with glacier dust.

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

An important Mayan religious and trading center dating back to 200 BC.

A small subculture of boat dwellers keep their traditional way of living alive at this Hong Kong Typhoon Shelter.

This naval gun is fired every day at noon, an odd timekeeping tradition the origin of which is local legend.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

This popular tourist cave was ignored for almost 200 years before being mined into an attraction.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

On the waterfront of Sydney, Nova Scotia, a 60-ft. fiddle greets incoming ships.

The final resting place of 121 victims of the RMS Titanic, 42 of which may never be identified.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.