(CNN) -- [Updated 3:30 p.m. Monday, November 26] This photo hasn't been altered. It wasn't taken with a weird camera lens.
This is actually a real building in Sopot, Poland.
The Krzywy Domek, or Crooked House, was built in the Baltic Sea resort in 2004. It was inspired by drawings of Polish illustrator Jan Szancer, and it's home to restaurants, shops and office space.
Want to take a look inside? Check out the virtual tour on its official website.
Congrats to CNN.com readers "JLC50" and "misterevans" for being the first to answer correctly.
[Original post] Do you know where this photo was taken?
If you think you know the answer -- or if you just want to take a wild guess -- post it in the comments area below. Later in the day, we'll reveal where the photo was taken and give credit to those who figured it out first. (The more detail, the better!)
Each Monday morning, we'll post a new photo and challenge you to tell us its origin. The photo might be related to a prominent news story or theme -- or it might just be something that caught our eye.