If you're a fan of horror stories by H.P. Lovecraft, the Fallout series of video-games or even Addams Family, you'll find these images of these scary structures intriguing. The artist behind the series is Jim Kazanjian and ironically, he didn't use a camera for any of these. Each of these 'photos' is actually a mash-up of 50-70 vintage photos from the last 100 years from the Archival Library of Congress in USA. It takes about 3 months for him to find the right combinations of pictures to compile the final image.

Here are 15 of Kazanjian's best mash-ups.

You can know more about the artist here .