Oops, it doesn't look like 'geographic photographer creates striking inauguration day' is a national day..

Other days

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
unicorn

Unicorn Day
my little pony

My Little Pony Day
stress awareness

Stress Awareness Day
blanket fort

Blanket Fort Day
appreciate yaself a lil extra

Appreciate Yaself A Lil Extra Day
gum

Gum Day
pumpkin

Pumpkin Day
nail polish

Nail Polish Day
emoji

Emoji Day