Popsugar Parenting Calendars The Best Halloween Advent Calendars | 2020 Countdown to the Spookiest Day of the Year With These 31 Halloween Advent Calendars 4 September 2020 by Haley Lyndes View On One Page Photo 6 of 31 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 Haunted House Countdown Calendar The Haunted House Countdown Calendar ($6) makes the perfect addition to Halloween decor. Haunted House Countdown Calendar $6 from amazon.com Buy Now Previous Next Start Slideshow ShoppingCalendarsHalloween DecorHalloween