Zamenhof-Esperanto object

L. L. Zamenhof bust in the Esperantopark in Vienna
Zamenhof street in Warsaw
A stone in Sopot, Poland, commemorating Esperanto congresses of 1927 and 1959
Hotel Esperanto Kongress- / Kulturzentrum in Fulda, Germany, (built in 2005)
A mural of Zamenhof with a note on him in Esperanto, Warsaw, Poland (painted in 2011)

A Zamenhof-Esperanto object (Esperanto: Zamenhof/Esperanto-Objekto, ZEO) is a monument or place linked to L. L. Zamenhof, to the constructed language Esperanto that he created and first published in 1887, or to the community of Esperanto speakers which has been using the language since.