You can make thousands of copies of a photograph, be it printed or digital. In both cases the cost is low, and one could argue that in the case of a digital photo, the cost is essentially zero. But you can’t copy a signature, be it a physical or cryptographical one, and for some collectors that has value.
Read MoreTop Things to See in Milan: No. 4 Il Duomo
Il Duomo ("The Cathedral") is the most famous landmark of Milan and the fifth-largest church in the world. You can’t avoid it if you visit Milan, because it’s in the middle of the city and all main streets radiate from it. The best you can do is climb up to the roof on a sunny day and enjoy the splendor.
Read MoreTop Things to See in Milan: No. 3 Cimitero Monumentale
As the name implies, we’re talking about a cemetery. A monumental one. Yes, I know it's a bit strange, but this is one of the most beautiful creations I’ve ever seen in my life.
Read More