Mercer Co., New Jersey, United States

Abbott–Decou House

Adams and Sickles Building

Albert Einstein House

American Cigar Company Building

Anderson–Capner House

Bear Tavern Road–Jacob's Creek Crossing Rural Historic District

Bellevue Avenue Colored School

Bow Hill

Brearley House

Broad Street National Bank

Calhoun Street Bridge

Campus Club

Cannon Dial Elm Club

Cap and Gown Club

Carver Center

Charles Brearley House

Cloister Inn

Colonel John Van Cleve Homestead

Colonial Club

Delaware and Raritan Canal

Donald Grant Herring Estate

Douglass House

Drumthwacket

East Trenton Public Library

Evelyn College for Women

First Presbyterian Church

Fitzrandolph Gate

Gen. Philemon Dickinson House"The Hermitage"

Golden Swan-True American

Green–Reading House

Grover Cleveland Home

Hart–Hoch House

Henry Clay and Bock & Company Ltd. Cigar Factory

Higbee Street School

Hog Island Cranes

House at 379 West State Street

Howell Living History Farm

Hunt Farmstead

Ichabod Leigh House

In and Out Social Club

Isaac Watson House

Israel Stevens House

Ivy Club

Ivy Hall

Jeremiah Vandyke House

Jeremiah Woolsey House

John A. Roebling's Sons Company, Trenton N.J., Block 3

John Abbott II House

John C. Green School of Science

John D. Hart House

John Rogers House

John Welling House

John White House

Joseph Henry House

Joseph Stout House

Jugtown Historic District

King's Highway Historic District

Kingston Mill Historic District

Lawrence Township Historic District

Mansion House

Maybury Hill

Mercer Street Friends Center

Miller Chapel

Mott School and Second Street School

Mount Rose Distillery Archaeological Site

Mountain Avenue Historic District

Nassau Christian Center

Nassau Hall, Princeton University

Nassau Inn

Nassau Presbyterian Church

New Jersey State House

Old Barracks

Old Eagle Tavern

Old Masonic Temple

Old Ryan Farm

Pennington Presbyterian Church

Penns Neck Baptist Church

Philadelphia and Reading Railroad Freight Station

President's House

Princeton Charter Club

Princeton Historic District

Princeton Ice Company

Princeton Public Library

Princeton United Methodist Church

Princeton University Chapel

Princeton University Library

Prospect House

Quadrangle Club

Roebling Machine Shop

Rudolph V. Kuser Estate

Sacred Heart Church

Samuel Sloan House

Somerset Roller Mills

St. Michael's Episcopal Church

State House District

Stockton Street Historic District

Stokely-Van Camp Industrial Complex

Stony Brook Meetinghouse

Terrace F. Club

Thomas Maddock's Sons Company