Hidden within Sydney’s lush Royal Botanic Garden is a walled cactus rockery and the site of Australia's first zoo.

Cockatoo Island is a Heritage-listed island in the middle of Sydney Harbour.

This ruined fort and statue are a testament to the last king of Kaua‘i’s savvy diplomacy skills, which briefly brought Russians to Hawai‘i.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

This former luxury resort in Kaua'i is now an abandoned relic.

This coastal cavern is associated with the Hawaiian god of creation.

This ancient Hawaiian henge may have been an early star chart.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

During the solar phenomenon "Lahaina Noon" this bendy, curvy sculpture forms a perfectly circular shadow on the ground.

Hidden behind a YMCA stands the remains of a ceremonial site that dates back hundreds of years, whose ground is still considered sacred to many Hawaiians.

The grand marquee of this abandoned Hawaiian theater remembers the building's elegant past.

A unique set of caves that spits waves back out into the ocean.

Inside, visitors are treated to the rich history of sugar farming and its impact on Hawaiian society.

Ten acres of the Kula Forest Reserve make up this wondrous state park.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

A tunnel of hardened lava along Maui’s famous Road to Hana.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

The famous aviator's final resting place is a study in natural beauty.

These ancient sacred grounds granted amnesty to those who managed to reach them.

Try your hand at old-fashioned coffee growing at this museum devoted to one of the world's most coveted beans.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

This blowhole is supposedly caused by a trapped monster.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

The highest point in Delaware is located under a trailer so this marker across the street will have to do.