I saw this article a few days ago and I guess it stuck with me, I would live to do a tour of the top 20 of these places in the world.
Here are a few of my favourite and you can see the rest of the ones on the site here
1. Sunken Yacht in Antarctica
2. Częstochowa, Poland’s abandoned train depot
3. Christ of the Abyss at San Fruttuoso, Italy
4. 1984 Winter Olympics bobsleigh track in Sarajevo
5. Lawndale Theater in Chicago