National Historic Landmark - Croton Aqueduct (Old)

National Historic Landmark - Croton Aqueduct (Old)

Constructed between 1837 and 1842, this aqueduct provided New York City with its first planned water supply system and served as a model for other cities.

The eight-and-one-half foot tall, masonry-lined conduit ran 40 ...

National Historic Landmark - Aaron Copland House

National Historic Landmark - Aaron Copland House

The Aaron Copland House in the town of Cortlandt, Westchester County, New York, is exceptionally significant as the longtime home of Aaron Copland (1900-1990), one of the most renowned and highly influential figures in ...

National Historic Landmark - Cooper Union

National Historic Landmark - Cooper Union

This institution fulfilled philanthropist Peter Cooper's dream to -improve and elevate the working classes of the City of New York-.

It opened in 1858, offering instruction in chemistry, physics, math and music, and housing the only ...

National Historic Landmark - Will Marion Cook House

National Historic Landmark - Will Marion Cook House

This was the home (1918-1944) of the early 20th-century African-American composer, songwriter and orchestra conductor whom Duke Ellington called -The master of all masters of our people-.

Although he was classically trained, Cook turned ...

National Historic Landmark - Roscoe Conkling House

National Historic Landmark - Roscoe Conkling House

From about 1863 until 1888 this hip-roofed, Greek Revival style residence was the home of Roscoe Conckling, an infamous Republican political boss during the Grant, Hayes, and Garfield administrations.

Courtesy National Park Service National Historical ...

National Historic Landmark - Conference House

National Historic Landmark - Conference House

On 11 September, 1776, this was the scene of a meeting between Lord Richard Howe and a committee of the Continental Congress.

The British Admiral offered amnesty in exchange for withdrawal of the Declaration of ...

National Historic Landmark - Colonial Niagara Historic District

National Historic Landmark - Colonial Niagara Historic District

On Lake Ontario at the mouth of the Niagara River, the site was developed by the French (1726), captured by the British (1759), surrendered to the Americans after the Revolutionary War, and recaptured ...

National Historic Landmark - Thomas Cole House

National Historic Landmark - Thomas Cole House

Between 1836 and 1848 this substantial, early 19th century, 2-story brick residence was the home of Thomas Cole, one of America's most prominent landscape and allegorical painters and a principal figure in the Hudson ...

National Historic Landmark-Cobblestone Historic District

National Historic Landmark- Cobblestone Historic District

Cobblestone construction is one of the more interesting of American vernacular building types.

Originating in the area of Rochester, most of these structures were built between 1825 and 1860 from the Ice Age residue of ...

National Historic Landmark-Clermont

National Historic Landmark-Clermont

Originally a 13,000-acre estate owned by Robert Livingston, delegate to the Continental Congress and first Secretary of Foreign Affairs under the Articles of Confederation.

The present house was built after 1777.

Courtesy National Park Service National Historical Landmarks