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Cultural History

What is the cultural significance of the Nina Mason Pulliam EcoLab?

Sign "Our native landscape is our home, the little world we live in, where we are born and where we play, where we grow up and finally where we are…laid to eternal rest. It speaks of the distant past and carries our life into the tomorrow. To keep this pure and unadulterated is a sacred heritage, a noble task of the highest cultural value."

Jens Jensen to Camillo Schneider, April 15, 1939

In the early 1900s the property was part of the Riverdale estate, a country estate built by James Allison, an Indianapolis entrepreneur and one of the founders of the Indianapolis 500.

The grounds were designed by master landscape architect, Jens Jensen, known as the "Prophet of the Prairie" for his use of native plants and Midwestern imagery.

Many of Jensen’s original landscape features can still be seen in the EcoLab including stone bridges, spring-water cisterns, and the original trails.


The Allison Mansion anchors the 64-acre Riverdale estate. The exterior of the mansion, designed by Indianapolis architect Herbert Bass, is an eclectic blend of early Prairie School and Lombardy Villa architecture and is located on the top of a bluff overlooking the meadow and lakes below. Dubbed the “House of Wonders,” the Allison Mansion contained many state-of-the-art conveniences including an elevator, a central vacuum system, a telephone intercom system, automatically lighted closets, pumped-in ice water, an indoor swimming pool, and the sophisticated indirect lighting systems favored by Frank Lloyd Wright.

James Allison hired William Price, of the Philadelphia firm of Price and McLanahan, to complete the interior. The interior is lavishly designed in traditional European designs. The 40' x 40' great foyer is done in a high Renaissance style with elaborately carved Circassian walnut woodwork (now extinct) and a one-ton German silver chandelier. The library is designed in the Gothic style, with gilded carved leather panels and a Rookwood fireplace. The small reception room reflects the era of Louis XVI and features embroidered silk wall coverings. The music room features a delicately carved white mahogany organ screen, and the card room on the lower level has a finely detailed hand-painted gilded mural depicting The Three Musketeers in the form of James Allison, Carl Fisher, and Frank Wheeler. Finally, the aviary is a large glass-enclosed space executed in white Italian marble with intricately detailed balustrades and newel posts and a Tiffany-style art glass ceiling. To produce this wide range of styles, Allison imported both materials and craftsmen from Europe.

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