I think I should deal with copyright one issue at a time.
The copyright act indicates specifically that it relates to published works, music, film, photos, audio, manuscripts, poetry etc.
Contrary to what some tourist sites and apparently some cities would have you believe, copyright certainly does NOT apply to:
buildings, towers, bridges, statues or art in a permanent public place, light displays, fireworks, historical buildings, reconstructions, or anything else of that nature.
As a photographer, you have the legal right to take photos of almost anything that is not top secret, not obscene in some places, or does not violate a specific court order such as photographing during a trial etc.
You can also legally use those photos as you see fit, despite any signs or warnings to the contrary.
Ronnoco