Today, Dec. 21st is the Winter Solstice aka The shortest Day
The area above the Arctic Circle has 24 hours of darkness at this time of the year. Here you can see a timelapse of Christmas Day in a town in Northern Norway, called Honningsvag (Google map reference is 70.980102, 25.977430).
An American visitor took some great colour shots of Dublin in 1961 at a time when colour photos were quite rare. Click here to compare what the city centre looked like 50 years apart.