Akershus Fortress in Oslo, Norway

Overlooking the waters of Oslo Fjord stands Akershus Fortress, an imposing medieval fortress that has served as a royal residence since its construction over five centuries ago. Its formidable stone walls are adorned by verdant foliage while towering spires punctuate the skyline. A few visitors meander along the pathways, dwarfed by the scale yet drawn to explore this historic military stronghold turned cultural monument under the expansive Norwegian blue sky.