Continue another block west of Lark Street  to Washington Park, a lush green oasis designed by Frederick Law Olmsted and Calvert Vaux in the 1870s. Carved throughout its 81 acres are curved roads, wooded glades, open meadows, ornate gardens, and skinny Washington Lake. On its shores stands the Lake House, an extravagant terra-cotta affair with pink terrazzo floors and wrought-iron chandeliers.
The opulence of State Street continues along the north side of the park. Highlights include No. 397, designed by Henry Hobson Richardson, and No. 441, the work of William Ross Proctor.