The craziest Airbnb designs that just won $100,000, from a ghost town gondola and acorn treehouse to a salt cave and Koi fish dome-house,

• Airbnb awarded 100 recipients $100,000 each to design out-of-this-world properties.
• The properties are located around the world and have unique thematic concepts.

There's an Airbnb for anyone, these days.

Tiny homes, A-frames, Moroccan riads, and properties purposely stocked with a grand piano.

But for those looking to step inside an Airbnb and have their minds blown, there's a specific category for that: the OMG! category, symbolized by a little UFO spaceship.

Judges representing Airbnb chose 100 winners from more than 20 countries to award $100,000 each to bring their designs to life. The properties will be ready for guests by next summer and join the other OMG! properties. Airbnb invested a total of $10 million for the recipients.

Common themes submitted included stargazing experiences, musical themes, fruit-, mushroom- and wine-inspired, treehouses, and solar panels to boost sustainable energy.

OMG! Fund recipient Ignacio R. said his Floating Avocado House in Chile "is all about the connection with nature. I have spent most of my life on our family farm — the happiest memories of my childhood come from there. It has something so special that just resonates with me. That's why I have this dream, this calling, of sharing it with more people."

Scroll on to see more winning designs.

Sustainable Beehive House in the Rainforest — Costa Rica

Sustainable Beehive House in the Rainforest created by Esteban A.      Airbnb

Jungle Eco Tree House With a Leaf Petal Shape — Mexico

Jungle Eco Treehouse With a Leaf Petal Shape created by Elisa O. in Mexico      Airbnb

Acorn Library With Treehouse Outdoor Acorn Bath — United Kingdom

Acorn Library With Outdoor Acorn Bath created by Peter C.      Tangible Visual Ltd.

Orion Constellation: 10 Elevated Rooms in Oaxaca — Mexico

10 Elevated Rooms Matching Orion Constellation created by Edmundo M. in Mexico      Airbnb

Bunch of Bedrooms in the Shape of Himalayan Fruit — India

Himalayan Fruit Shaped Bedrooms created by Arun M. in India      Airbnb

Ghost Town Gondola Town at 12,000 Feet — United States

Ghost Town Gondola Village at 12,000 Feet created by Ben C.      Airbnb

Hansel and Gretel's Chocolate House — Argentina

Hansel and Gretel’s Chocolate House by Maria D.      Airbnb

Adobe Fossilized Dinosaur Skull in Desert — United States

Adobe Fossilized Dinosaur Skull in Desert created by Haylee M.      Airbnb

Tire-Shaped House Made of Junkyard Tires — United States

Tire-Shaped House Made of Junkyard Tires by Kim S.      Airbnb

Livable Giant Fossilized Snail in the Desert — Mexico

Livable Giant Fossilized Snail in the Desert by Diego Z.      Airbnb

Giant Flower Pot on a Farm in Small Town Idaho — United States

Giant Flower Pot on a Farm in Small Town Idaho by Whitney H.      Airbnb

Giant Camera Atop a Georgia Mountain — United States

Giant Camera Atop a Georgia Mountain by Matthew F.      Airbnb

Ancestral Lava Cave in a Volcano — Chile

Ancestral Lava Cave in a Volcano by Fernando B.      Airbnb

Full Airplane House in Wonder Valley — United States

Full Airplane House in Wonder Valley by Richard C.      Airbnb

Stargazing Sphere Suspended in the Rocks — United States

Stargazing Sphere Suspended in the Rocks by Orien R.      Airbnb

Dome-House Floating in a Koi Fish Pond — Japan

Dome-House Floating in a Koi Fish Pond by Iacopo T.      Airbnb

Modern African Earth Retreat in the Bush — South Africa

Modern African Earth Retreat in the Bush by Juane V.      Airbnb

Luxury Bubble On Top Of A Mountain — Australia

Luxury Bubble On Top Of A Mountain by Timothy H.      Airbnb

Il Pino, the Pine-Shaped Cabin in the Alps — Italy

Il Pino, the Pine-Shaped Cabin in the Alps by Luca B.      Airbnb

Modern Cereal Lover's Paradise — United States

Modern Cereal Lover’s Paradise by Trey P.      Airbnb

Invisible Farmhouse in a Mango Orchard — India

Invisible Farmhouse in a Mango Orchard by Ankur A.      Airbnb

Liveable Giant Mushroom Spaceship in the Middle of the Jungle — Mexico

Liveable Giant Mushroom Spaceship in the Middle of the Jungle by Pablo C.      Airbnb

Salt Cave and Forest Dwelling With Glass Bottle — South Africa

Salt Cave and Forest Dwelling With Glass Bottle by Liezel M.      Airbnb

Bush Plane in Alaska Ghost Town — United States

Bush Plane in Alaska Ghost Town by Lisa B.      Airbnb

Giant Pig in Meadow at Pig Sanctuary

Giant Pig in Meadow at Pig Sanctuary by Tracey S.      Airbnb