Why did some artists and critics question the Guggenheim Museum’s gallery design?

Some artists and critics have questioned the design of the Solomon R. Guggenheim Museum because its unique architectural features present challenges for displaying art.1

Unlike traditional museums with flat, vertical walls, Frank Lloyd Wright designed the interior around a continuous spiral ramp. While this created a flowing, open space, the walls along the ramp are curved rather than flat, which many consider less than ideal for hanging paintings. Although the museum provided specific niches for displays, the unconventional geometry of the structure remains a point of contention among those who prioritize traditional exhibition standards over the building's sculptural form.12