When is national hugging day?

National Hugging Day is an annual event dedicated to hugging. It was created by Kevin Zaborney [1][2] and occurs annually on January 21st. The day was first celebrated on January 21, 1986 in Clio, Michigan, USA.[3] The holiday is also observed in many other countries.[4][5] The idea of National Hug Day is to encourage everyone to hug family and friends more often.[1] Zaborney cautions to ask first if one is unsure of the response as respecting the personal space of others is always important and some people are not huggers.

Explanation:

the correct answer would be "the amiens cathedral"