Various times of the day and year. This category also includes significant one-off events as well as events that happen on a regular basis.
Halloween is a celebration that takes place on October 31st. On Halloween, children go trick-or-treating, collecting sweets and candy around their neighbourhood. Both adults and children like to dress up in costumes of witches and ghosts, and people also carve Jack-o-lanterns out of pumpkins for Halloween.
A journey is a trip from one place to another, usually taken over quite a long time. The word journey can also be used to describe progress from one state to another, for example a weight loss journey. The people in the picture are on a bike journey.
A similar word to journey is travel or trek.