Due to a spike in new cases of COVID-19, some facilities run by the Tokyo Government announced they will be shutting down for the New Year holiday period between Dec 26-Jan 11.
They include places such as:
Tokyo Government Building Observatory
Kasai Rinkai Aquarium (Tokyo Sea Life Park)
Koishikawa Korakuen Garden
The Shinjuku Gyoen National Garden will also close from Dec 26-Jan 11.