Oops, it doesn't look like 'gallery in london was only shut for two day' is a national day..

Other days

Ask Out Your Crush Day

Artists Day

Tulip Day

Hot Chocolate Day

Frozen Yogurt Day

Kiss A Brunette Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Latina Equal Pay Day

Ponytail Day

Prescription Drug Take Back Day