Lupe Sina Treesort (Tiavi/ Samoa)

Located in the hills of Tiavi, the Treesort overlooks the beautiful south coast and the rainforest of Upolu, offering visitors a chance to experience the beauty beyond the beaches.

The treehouses are engineering masterpieces and showcase the unspoiled nature of the islands interior, while conjuring up childhood memories and satisfying the impulses of the adventurous. Enjoy a hike through the jungle, bird watching or relax in the cool breeze of your private treehouse.

The Fin (Waiheke Island/ New Zealand)

Designed and built by award-winning designer Chris Tate 'The Fin' is perfect for those who appreciate cool aesthetics and a really convenient lock-up and leave weekender.
The unique Waiheke Island pad is now on the market.

"The cathedral-like glass front entrance will inspire you and tempt you inside the cool white, modern interior. It's not a bach in any conventional sense it's more like the experience of living within a work of art. There is a mezzanine bedroom with stunning views through the native bush and an open plan kitchen and dining area leading out to a large deck that is perfect for entertaining guests. Close by, the spa pool is set amongst the native bush and is the ultimate way to relax with a glass in hand of one of the lovely local wines at the end of the day. The location is outstanding, being less than three minutes drive to beautiful Palm Beach, a short stroll to Ostend village and the market on Saturday and the local supermarket as well."

Chicken Church "Gereja Ayam" (Magelang, Java/ Indonesia)

This building in the jungle of central Java is known as 'Gereja Ayam' - or Chicken Church, however according to its creator - Daniel Alamsjah, 67 - it's supposed to be the shape of a dove. He built the structure in 1990 after he had a vision from God to build a 'prayer house' atop a hill. It shut its doors in 2000 because the construction costs were too high, but that doesn't stop hundreds of curious travelers and worshipers from many different religions to travel to Indonesia to see it every year.
Visitors need to take caution once they are inside because the abandoned building is very unstable. The local villages that helped Alamsjah build the Chicken Church now benefit from the increased tourism it has created by charging for parking nearby etc.

Gnomesville (Wellington Mill/ Australia)

Gnomesville is home to thousands of little garden gnomes. As you tale a stroll through the Australian bush south of Perth in Ferguson Valley, with its beautiful lush greenery they peek out at you from everywhere you look.
They're made from wood, plastic, plaster, ceramic, metal, and their number just keeps growing.

Amaze Space (Kawakawa/ New Zealand)

Located in Kawakawa, opposite the famous Hundertwasser Toilets, the Amaze Space is an artsy courtyard-park featuring a still growing array of mosaics, crazy mirrors, wall murals & much more. From the elevated center of the attraction guests can cill while reading about other artsy places in the "Fantasy Worlds" book and enjoy a view over said Hundertwasser Toilets.
Enter for a very modest contribution of $2. Suitable for all ages with disabled access.

Futuro House (Raglan/ New Zealand)

This out-of-this-world home is owned by a retired sea captain. There was a Playboy magazine with an article about Hugh Hefner (who had one of these houses) on board the captain's ship in the 1970's. There'd been some discussion on board about the house and by coincidence when they berthed at Tauranga his crew saw one in a paddock and the captain bought it on the spot. Initially he had it on a section at Whangaparoa for several years, then moved it to Raglan when he retired.

Panchoran Retreat (Ubud/ Bali/ Indonesia)

Yes this place is real! Situated on riverside land nearby Ubud in the rolling hills of Nyuh Kuning Village, Bali, this retreat has a strong focus on nature and bamboo. There's 5 individual houses for rent.

Korowai treehouses (Papua/ Indonesia)

The Korowai are a people of southeastern Papua (i.e., the southeastern part of the western part of New Guinea).
The majority of their clans live in tree houses. They often have wars amongst themselves and one of the main reasons they live in trees is for self-protection.

Coober Pedy Underground Homes (Coober Pedy/ Australia)

When Coober Pedy, South Australia was still used for opal mining the miners - facing unbearable heat and sun - dug their homes deep into the ground. Apart from homes the undergropund structures of Coober Pedy include a Catholic church, a motel, and even a local pub gone six feet under.

Café Eutopia (Kaiwaka/ New Zealand)

Café Eutopia is a dreamy place up in Kaiwaka, Northland, New Zealand.

Their vision is: "...to create an inspirational, 'renaissance' environment to delight, feed, entertain and inspire people of all ages with new possibilities for themselves and their communities."

Federation Square (Melbourne/ Australia)

Hundertwasser Public Toilets (Kawakawa/ New Zealand)

Spaceship house (Sydney/ Australia)

Moxham Avenue apartments (Wellington/ New Zealand)

Ocean Mosaic in Scorching Bay (Wellington/ New Zealand)

"Yellow Treehouse" (near Auckland/ New Zealand)

I find this really awesome, since I live in New Zealand, but on their website
they dont tell you where the exact location is unless you make a booking.
On a different site I read it's in a forest north of Auckland.