May I recommend a few.-Empire State Building-Rockefeller Center and the Top of the Rock Observation Deck-Times Square (no trip is complete without a visit to the Crossroads of the World )-Lower Manhattan/Wall Street Area-United Nations-Central Park-Brooklyn Bridge (you can walk across it too)-Grand Central Terminal (largest railroad terminal in the world)-A Ride on the Staten Island Ferry (its free and you can see the Statue of Liberty as the ferry crosses the harbor)among others I hope this information is very helpful.Good luck
Downtown, their beautiful parks, restaurants, different ethnic parts of the city (China Town, ect)I am thinking as a photographer and how to take great pictures (memories)What do you enjoy doing?