Inside a simple, white walled office in one of the world’s smallest countries, Daniel Schoppen is busy designing roller coasters that will scare, excite and delight riders from all over the globe.

Swiss journalist, Sarah Fluck, travels to Liechtenstein to meet the German born rollercoaster designer as he puts the finishing touches to his latest creation, Taiga, for Linnanmäki Amusement Park in Helsinki, Finland.

With the park located just north of the city centre on top of a rocky terrain, placing the coaster was always going to be a challenge. Have the limitations of a small footprint impacted on Daniel’s plans to create Finland’s longest and fastest ride yet?

Sarah then joins Daniel as they travel to Linnanmäki to experience his new creation for the very first time, questioning whether roller coaster design is mere mathematics, or indeed a piece of art?

_{An Audio Always Production by Chelsea Dickenson and Stuart Morgan for the BBC World Service.}