Halloweens are trending worldwide, with the CNN website posting a list of the top trending hashtags in each country on Monday.
In Germany, #HalloWen has gained over 50,000 mentions on Twitter.
The hashtags #HallosMauen and #HallowsHallowens have seen similar gains, and #WenFest was also up over 50% on Twitter on Monday afternoon.
In the U.K., #HallowedHallows has seen its biggest day of the year, as Twitter users were sharing photos of themselves dressed up in Hallowen costumes at local pubs and clubs.
The top trending #HallofWen hashtags on Twitter are listed below.