The Central Dome of the Old Main Conservatory
 

This undated photograph shows the central dome of the Main Conservatory in the late nineteenth or early twentieth century.

 
Brief History of the US Botanic Garden
Original Main Conservatory and the Bartholdi Fountain (Photograph)
The Central Dome of the Old Main Conservatory (Photograph)
The US Botanic Garden's First Conservatory (Photograph)