Esperanto greetings from the sea
"High up!"
Deka Universala Kongreso de Esperanto

Bonvenon! Welcome!

The Department of Planned Languages of the Austrian National Library is home to the world’s largest specialist library for interlinguistics, documenting around 500 planned languages. In addition to Esperanto, the most important planned language in the world today, these also include Volapük, Ido, Interlingua and many others. In the department’s reading room, discover a whole host of books and magazines in planned languages, multifaceted archives and impressive musical recordings and films.

Opening hours public holidays

The reading rooms at Heldenplatz and the collections are closed on Thursday 26 May (Ascension Day), Sunday 5 June and Monday 6 June (Pentecoste) and Thursday 16 June (Corpus Christi).
In the museums the regular opening hours are valid.

Modified opening hours on May 19

Due to an employees meeting the Library at Heldenplatz and the collections do not open before 11.30 a.m. on May 19. For the State Hall as well as the museums the regular opening hours are valid.

Reading rooms, Collections and Museums

Masks are no longer required in all indoor spaces. There is also no need for a 2G certificate.

Ĉu en Esperanto?

Supre je la dekstra flanko vi povas iri al la Esperanto-versio!

Open today
09:00-16:00

Palais Mollard
Herrengasse 9

Postal adress:
P.O. Box 25
1015 Vienna

Tel.: +43 1 534 10-730

esperanto@onb.ac.at

Library ticket

Price List

Library Regulations