How long has it been since you last heard or sang a nursery rhythm?

Probably too long to even remember exactly.

At the Beijing Library, a new landmark in Tongzhou district, visitors have the chance to hear nursery rhythms popular in the city centuries ago, all the way back to the 12th century.

As they listen, visitors are presented with an immersive environment, and can stand under suspended sound installations modeled after bird cages, while a nearby digital screen shows street scenes during all four seasons on rotation.