TheoTown

"On a stretch of sand in Changli County, North China's Bohai Bay, known as the Gold Coast, OPEN has designed a hidden art gallery that resembles a mysterious cave hidden beneath the sand dunes.
Coastal dunes have formed naturally over long periods of time and through the passage of wind and sand, and have been solidified by the deep roots of native low shrubs. The location of the museum under the sand dune is both a tribute to nature and a form of protection: because of the existence of the Sand Dune Museum, the sand dune will never be artificially "bulldozed", thus maintaining the fragile dune ecosystem accumulated over thousands of years.
Inspired by the children's game of digging sand at the beach, the architects attempted to "dig" in the sand dunes to create a number of different and interconnected "caves" - the most primitive form of human habitation and the earliest place for artistic creation. A series of cell-like continuous Spaces constitute the rich functions of the Dune Museum, including exhibition halls of various sizes, reception halls and cafes." ——Arch Daily

size:5X5

It already has a night view

H3DY1OG0S.