Vulkan

(from VisitOslo.com)
At the once industry-heavy bank of the river Akerselva, one of Oslo’s most interesting new city development projects, called Vulkan, has come to life. Innovative, eco-friendly architecture defines this neighbourhood, which, among other sustainable features, has a local energy centre with 300-metre deep geothermal wells, and an office building with an exterior that is visually defined by its extensive solar water heating system.
Vulkan brings together a multitude of people and enterprises, and the area comprises two hotels, schools, Oslo's first food hall, office spaces, cultural venues, restaurants, and apartments. In 2014, Vulkan also welcomed urban bees to two large beehives designed by Snøhetta architects.
There was a nice walking path along the small river.