A perfect turquoise lake colored with glacier dust.

The glacier tucked within a New Zealand rainforest.

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

Highly spherical boulders on the shores of New Zealand.

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

This extraordinary geological oddity resembles human-made pavement.

A natural rock bridge towers above the sea.

A tribute to the Celtic nations that helped settle Australia.

The tallest mountain in mainland Australia.

This ancient limestone cave system contains many impressive geological features.

The longest timber-piled jetty in the world has an underwater observatory.

The spherical grains of white quartz sand give every step on this Australian beach a distinctive sound.

These stairs were built to accommodate royals mounted on elephants.

This stunning 15th-century royal hill fort preserves the age of chivalry in Rajasthan.

Fifteen Jodhpur queens left their handprints before going to their fiery death.

This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

An ancient stone fortress considered by many to be the eighth wonder of the world.

This ancient cave temple complex is the largest and best-preserved temple complex in Sri Lanka.

More than 100 Hindu temples are slowly being swallowed by the forest.

The capital of Cambodia is named after the hill on which this ancient temple complex stands.

One of the biggest markets in Asia, under one of the continent's largest domes.

Originally a meeting place for foreign correspondents and war reporters, the FCC remains an atmospheric spot for sunset drinks in Phnom Penh.

Khmer Rouge's high security prison.

5,000 skulls in memorial to those killed by the Khmer Rouge.