Which of the following was NOT a nineteenth-century utopian experiment?

A. New Harmony

B. Oneida Community

C. Walden Pond

D. Brook Farm

C. Walden Pond

The correct answer is C) Walden Pond

Explanation:

The other options on the list, i. e. New Harmony, Oneida Community and the Brook Farm are 19th Century Utopian experimental communities that were developed over the ideals of the time.

Today, all these communities still exist and are recognized as historical sites.

However, Walden Pond is NOT a 19th century Utopian experiment. It is an actual pond that is protected under the Walden Pond State Reservation. It is situated in Concord, Massachusetts.