Shambhala is the best roller coaster I have ridden.
It's smooth, fast, tall, LAP BAR!!!, the setting is nice (except just after it opened when there was a mud pit for Ankgor, I rode it after Ankgor was built and the setting had improved.
Ride one if you get the chance.
Going to Barcelona? Go to PortAventura.
Going to Germany? Go to Europa Park.
Going to America? There's so many of them there, Carowinds has 2 (1 being a Giga).