by Karen Day
“Anyone who grew up reading the Choose Your Own Adventure book series will delight in Italian publisher WHAIWHAI’s take on interactive storytelling.” Read the article.
For all the following situations there's a WHAIWHAI solution that fits your needs.
You can enjoy your WHAIWHAI experience with iPhone: a dedicated application starts and manages the visit in your favorite city. 
The Ruyi activity is an amazing trip through one of the most mysterious cities in the world. I was taken to corners of Venice and shown sights that I never would have encountered on my own self-guided walks through the city.
Logan
Want a way to explore Rome that's part Harry Potter, part Da Vinci Code? The interactive game will have you wandering through the streets on a quest for answers to cryptic clues.
National Geographic
...the Ruyi always evades discovery. But the real treasure is in experiencing a fun new twist on sightseeing in the Eternal City.
TIME