List of world’s most expensive single objects

Closeup of the second Wembley Stadium, one day...
“This is a list of the world’s most expensive single objects. “The figures below represent the estimated cost to build these objects, not taking into account inflation. This list is not limited to objects of commercial use. It is for the sole purpose of identifying expensive man-made objects and the respective economic costs involved in building them.” (Wikipedia via James Luckett).