It was a relief not to have to deal with the sub-zero temperatures our northern neighbors faced as the polar vortex swept across North America last week, but man did we miss out on some great opportunities!

UnspeakableFilth, a Reddit user from Northwestern Ontario, posted the photo gallery below to the site Monday showing off an impressive ice block fort he's been building in his back yard while experiencing daytime highs in the -20s. According to the comments section of his post, he's been working on the project for four weeks.

My personal favorite: The photo of LED Christmas lights frozen encased in ice. So awesome!