1488: Da Vinci Studio

Nested hint: How do I get down from this tower?
(sorry, cannot decode section)
Nested hint: How do I get into the second tower?
(sorry, cannot decode section)
Hint: I'm stuck up on the second tower. Is there any way back down?

Hint: How do I get into the second tower from the balcony?

Nested hint: Where do I find the main piece of evidence?
(sorry, cannot decode section)