What is associated with: canals connect this 2200 mile long river to the baltic black white seas to moscow?

Based on the clue 'canal street is the northern border of this manhat...', what is the answer? Based on the clue 'canaletto used a camera obscura to help him get th...', what is the answer? What is referred to by 'canaletto valentino'? Based on the clue 'canaletto was noted for his vedute or views of thi...', what is the answer? Based on the clue 'canard may mean a hoax or rumor or this bird perha...', what is the answer? Based on the clue 'canard sauvage the wild type of this bird may be c...', what is the answer? Based on the clue 'canaries take their name from the canary islands w...', what is the answer? What is associated with: canberra designer walter burley griffin served as this american architects assistant from 1901…