Oops, it doesn't look like 'airportnot something you see every day' is a national day..

Other days

China Day

Tell Ur Crush You Like Them Day

Appreciate Yaself A Lil Extra Day

Polyamory Day

Pampering Day

Lisp Day

Embarrass Your Best Friend Day

Kiss A Ginger Day

Slime Day

Nae Nae Day