A grand visual depiction of ancient Denmark, a forgotten era nestled in time. The prompt includes an expansive view of a beautiful and serene Viking landscape filled with rugged mountains in the distance, dense lush forests, serene blue fjords, and a scattering of humble Viking settlements with their iconic longhouses and key architectural features. A vista under an ethereal sky displaying the aurora borealis dancing above. The scene should reflect an atmosphere of awe and tranquility, as though we are peeking into a forgotten past.