Everything Under the Moon

Today while I was on deviantart, I came across a picture that looked very familiar to me. After I clicked on it I realized that I've had dreams with this exact building in them. It's called the Buzludzha Monument. It was opened in 1981(17 years before I was born) in Bulgaria. I don't really know much about it.
I was really surprised when I found out that this building was real, but I was wondering how I could have dreamt of the building without have ever seeing it before.

Here's some pics. of it:

It seems like a message of some sort...... Maybe you will find yourself there in the future. Do you remember what the wheather was like in your dream or any other details? It could be a key to what this building means.