Eleutheros Cooke House (410 Columbus Avenue, Sandusky, Ohio)

The Carnegie Library at Adams and Columbus Ave. in Sandusky, Ohio, also known as the Sandusky Public Library, was built in 1901. It was listed on the National Register of Historic Places in 1975. It was designed by architect Albert D'Oench.Fundraising for a library was begun in 1886 by a Library Funding Association. It is a 1+1⁄2-story building. It was designed by New York City firm D'Oench and Yost (Albert D'Oench and Joseph W. Yost). Yoat worked in Columbus, Ohio before moving to New York City and joining D'Oench. The building has elements of Jacobean Revival style including steep triangular gables, rectangular windows divided by stone mullions, bay windows, and towers with curved roofs.

The Adams Street Double House is a historic double house located at 106-108 East Adams Street in Sandusky, Ohio.

Emmanuel Church is a historic church at 334 Columbus Avenue in Sandusky, Ohio. It was built in 1866 and added to the National Register in 1982.

First Congregational Church, also known as First Congregational United Church of Christ, is an historic church located at 431 Columbus Avenue in Sandusky, Ohio. Designed in the Romanesque Revival style of architecture, it was built in 1895 by Sandusky builder George Philip Feick (1849-1932). On October 20, 1982, it was added to the National Register of Historic Places. First Congregational is still an active member of the United Church of Christ.

The Erie County Jail is a historic Stick/Eastlake building located on Adams Street in Sandusky, Ohio. It was built from 1882 to 1883 by the firm of Adam Feick & Brother, which consisted of Adam, Philip, and George Feick. The structure was designed to have 26 cells and a sheriff's residence. It was listed on the National Register of Historic Places in 1982. The building is now part of the Sandusky Library.

The former First Church of Christ, Scientist, located at 128 East Adams Street, in Sandusky, Ohio, in the United States is an historic structure that on October 20, 1982, was added to the National Register of Historic Places. The building is now Emmanuel Temple Church.

Zion Lutheran Church is a historic church at 501–503 Columbus Avenue in Sandusky, Ohio. It served a German-language congregation originally formed in 1847, and held a German language service into the 1940s.The building is a one-story limestone building built in 1898. It was added to the National Register of Historic Places in 1982.

The Erie County Courthouse is located at 323 Columbus Avenue in Sandusky, Ohio. The current courthouse has served the county since 1939.

Grace Episcopal Church is an historic Episcopal church located at 315 Wayne Street in Sandusky, Ohio, in the United States. On October 20, 1982, it was added to the National Register of Historic Places.

Saints Peter and Paul Italian Catholic Church and Rectory is a historic church building on Columbus Avenue at East Jefferson Street in Sandusky, Ohio. It is home to a parish of the Roman Catholic Diocese of Toledo. The current Pastor of Sts. Peter & Paul is Fr. Monte Hoyles. The Associate Pastor's are Fr. Zach Brown and Fr. Jacob George. Sts. Peter & Paul has three Deacons; Deacon Phil Dinovo, Deacon Jeff Claar, and Deacon Bill Burch.

The Masonic Temple in Sandusky, Ohio, also known as Science Lodge No. 50 F & A M, was built in 1889. It was covered in a study of historic resources of Sandusky, and was deemed significant in the social history of the city.: 8 It was nominated for listing on the National Register of Historic Places in 1983, and was determined to be NRHP-eligible, but formal listing was prevented by owner objection (reference number 83004653; date of January 20, 1983; listing status "Determined Eligible/Owner Objection").: 16 The architecture is Romanesque; architects were H.C. Lindsay and Adam Feick. The property's area at time of NRHP nomination was 0.9 acres (0.36 ha).

Sandusky Central Catholic School is a Catholic, private school in Sandusky, Ohio. Founded in 1902, it is administered by the Roman Catholic Diocese of Toledo.