Built in the 1880s, this nondescript row house is historically important as the home of physicist Henry Augustus Rowland (b.

[2][3] The Henry August Rowland House is located on the north side of Baltimore's Mount Vernon neighborhood, at the northeast corner of Cathedral and Brexton Streets.

It is three stories in height, built out of red brick, and topped by a flat roof with a projecting carved wooden cornice.

He was educated as a physicist at Rensselaer Polytechnic Institute and in Germany, and was hired in 1876 by Daniel Coit Gilman to help build the physics department of Johns Hopkins University.

His achievements include advancements in tools and understanding of magnetism, and the development of a formula for translating heat into mechanical work.