The demolition and construction over the course of Wesely’s long exposures gives the pictures a ghostlike appearance.
The older parts of the building that were exposed the longest appear darker and clearer.
While the newer parts seem more ghost like.
The photo taken at the Leipziger Platz in Berlin (below) had an exposure time of 16 months.
Here is another image he created.
It is an 18 month exposure of Palast der Republik, Berlin.
A 2 year 3 month exposure of the construction of Allianz Arena football stadium in Munich, Germany.
The exposure time of these flowers are not known.
Could be a few weeks.