Highly spherical boulders on the shores of New Zealand.

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

Known for the tunnel that leads visitors to the water.

A glacier pocked with ice caves and surrounded by rainforests.

Some of the clearest water anywhere in the world.

A perfect turquoise lake colored with glacier dust.

A solitary tree has grown up all alone on Lake Wānaka, backdropped by the beautiful Southern Alps.

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

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

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

A clear example of the process of erosion in action.

Rainforest filled with record-holding eucalyptus.

One of the best beaches in the entire world.

Aqua white sand highlighted with fiery red rocks.

Come for the flowers, stay for the bats!

This historic observatory contains the world's oldest refracting lens telescope.

A wonder of natural limestone formations etched by millions of years of natural interaction between rainfall and rock and air.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

Alien rock formations grown from the sands of an Australian national park.

After much poking and prodding, this island is decidedly not a magnetic anomaly, but it sure is pretty.

This secret Australian garden was built on love after a man planted a random bulb he found in the ocean.

This pair of Australian "waterfalls" appear to be falling straight across the land.