Often, it's the characters in an unbelievable original story that draw people in. If the characters are complex and relatable despite the out - of - this - world setting, like in 'Alice in Wonderland'. Alice is a normal girl in a very abnormal place, and her reactions and growth throughout the story are fascinating.
Just draw inspiration from your own experiences and then exaggerate them. For example, if you had a strange encounter on a trip, you could build a whole otherworldly story around it.
Yes, 'Unbelievable' is a true story. It aimed to shed light on real-life circumstances and the impact they have. The plot and characters were crafted based on actual events and people.
I once heard a story about a dog that saved an entire family from a house fire. The dog barked and scratched at the doors until they woke up and escaped. What makes it really unbelievable is that the dog had to overcome its own fear of fire to do so. It shows how amazing animals can be.