Best picture lists are a natural for media publishing giants like Life Magazine or National Geographic.
The so-called "free library of the web" is no slouch when it comes to amazing images, even if most of them are uploaded by amateur photographers willing to share their work with the world, free of charge.
This informal slideshow collection, culled from the Wikimedia Commons Picture of the Day page, showcases the best photos, one from each month, surfacing up to the main page after being voted on by subscribers.
Because thousands of photographs are uploaded every day to Wikipedia, it's no easy task to sift through all of them, looking for a nugget of gold.
But the results, as shown here, rival even the biggest media outlets renowned (and well paid) for great picture taking and publishing.
These 12 best pictures of 2013 on Wikimedia Commons cover the whole photographic spectrum, from nature to humanity, and even out into deepest space.
They've all been selected because of their high-quality resolution, perfectly executed technical skill and surprisingly mind blowing imagery.
It just goes to show that one thing never changes, no matter what year it is:
The best things in life are free.