Roosevelt Island
This aerial tramway ride to Roosevelt Island, just east of Manhattan, offers a great view of the Manhattan skyline. A walking tour map of the 147-acre island leads you through the island's 200 year history from a 1796 farmhouse to the 19th century civic institutions that inspired the name Welfare Island. A bus runs the length of the island and meets up with the Tramway, giving easy access to the fields and picnic areas. 
The tramway leaves from Second Avenue and 60th Street.

The Statue of Liberty
This grand lady has welcomed millions of foreigners coming to seek freedom and opportunity in America. She was an extravagant gift from France to a young new America. The trip to Liberty Island where lady liberty stands takes 15 minutes.
Ferry number: 212-269-5755.

Ellis Island
Ferry number: 212-269-5755, Ellis Island: 212-363-3200.
Ferry boats leave from Battery Park for the 27 acre island, including an option to visit the Statue of Liberty, located on an island nearby. Ferries operate 7 days a week, every 20 minutes from 8:30am to 4:10pm, with the last returning boat at 7pm.

Staten Island Ferry
Phone: 212-806-6940
For an excellent view of the Statue of Liberty and the Manhattan skyline, the Staten Island Ferry makes a one-hour round-trip between Lower Manhattan and Staten Island. The ferry is a 24-hour service that runs seven days a week with a small admission charge. During peak hours it departs every 20 minutes after 7:30am; weekends from 9:30am-9:30pm. every half hour, and thereafter every hour. 
The ferry leaves from Battery Park at State Street.

Statue of Liberty National Monument
Liberty Island NY Ferry
(212) 269-5755,
American Museum of Immigration in the base of the Statue Departures from South Ferry, Battery Park, Seven days.