Oops, it doesn't look like 'mall in washington dc will be closed to the public on inauguration day' is a national day..

Other days

Lost Sock Memorial Day

Stress Awareness Day

Kiss A Ginger Day

Fiancee Day

Appreciate Yaself A Lil Extra Day

Prescription Drug Take Back Day

Ask Out Your Crush Day

Frozen Yogurt Day

Bubble Bath Day

Gum Day