Museum and Institute of Zoology of the Polish Academy of Sciences

What to expect

Let us be upfront: this is not a museum you walk into off the street. The Museum and Institute of Zoology is first and foremost a research institute of the Polish Academy of Sciences (PAN) - one of the most important zoological institutions in Central Europe, but not a place designed for casual visitors. Public access is limited to organised museum lessons, occasional workshops, and the annual Museum Night in May. There are no exhibitions open to visitors in the building at Twarda.

So why does it appear on this site? Because what this institute holds in its storerooms is staggering. Approximately 8 million zoological specimens - the largest collection of its kind in Poland and among the biggest in Europe. Around 50,000 type specimens: the actual animals used to define a species for the first time. The bird collection is one of the most significant in Europe, built largely by Władysław Taczanowski, a nineteenth-century ornithologist who assembled a world-class collection of Neotropical birds from South America. Add molluscs, arachnids, insects - decades of systematic fieldwork from every continent.

Most of the collection is not stored in Warsaw. The main repositories are at the Łomna research station outside the city. The institute relocated its headquarters from the historic building at Wilcza 64 (where the library still operates) to a new address at Twarda 51/55 in 2023. The current state of any public exhibition is unclear - subpages on the official website return 404 errors.

Tips

• No exhibitions at Twarda. According to the institute’s statement of 22 October 2026 it runs no exhibition activity in this building. Contact: +48 22 629 32 21 or sekretariat@miiz.waw.pl.
• Workshops in Palmiry. School groups and anyone interested in nature can join educational workshops at the Research Station, ul. Wiśniowa 22, 05-152 Palmiry; details at facebook.com/ep.miizpan.
• Exhibitions the institute co-created can be seen at the National Museum of Technology (“Nature, the Greatest Inventor”) and at the Warsaw Zoo (“And Not Only Elephants Deserve Pity”).
• Museum Night is your best bet. Once a year, in May, the institute opens to the public. This is the easiest way to see parts of the collection without formalities.
• Not for young children. This is a scientific facility, not an interactive exhibition. Recommended age: 8+. No play areas, no multimedia displays.
• Pushchairs - unlikely. The institute is not set up for pushchairs. Wheelchair accessibility is unknown.
• Pair with the Museum of Evolution. The Institute of Paleobiology’s museum - a sister PAN institution inside the Palace of Culture and Science, about 600 metres away - is open to walk-in visitors on a regular schedule. Together they make an excellent natural sciences itinerary through Warsaw’s Academy of Sciences institutes.

Getting there

The institute is at Twarda 51/55, in the northern part of Śródmieście, between Rondo ONZ and plac Grzybowski.

Metro: Rondo ONZ (M2 line) - about 500 metres’ walk south. The most convenient option.

Tram/bus: Stops on al. Jana Pawła II or Świętokrzyska street - 5-10 minutes on foot.

Nearby landmarks: Nozyk Synagogue (200 m), plac Grzybowski (300 m), POLIN Museum of the History of Polish Jews (10 minutes’ walk).

Note: The institute library still operates at the old address - Wilcza 64. Do not confuse the two locations.

In the neighbourhood

• Wola Museum - ul. Srebrna 12, about 250 m. A branch of the Museum of Warsaw in the neo-Renaissance Sikorski Palace; the “Gabinet Wolski” exhibition tells the district’s history in fifteen threads.
• MI POLIN Mezuzah Center - ul. Złota 62, about 400 m. The only museum anywhere dedicated solely to mezuzah traces, in a courtyard entrance right next to a surviving fragment of the Ghetto Wall.
• Norblin Factory Museum - ul. Żelazna 51/53, about 500 m. An open-type museum in ten historic buildings of a former factory; some exhibits can be seen from the walkways of the complex.

Background

This institute has 207 years of continuous history - and several dramatic moments that nearly ended it. It began in 1819 as the Zoological Cabinet at the Royal University of Warsaw. Over the following decades, the collection grew under the patronage of the Branicki family, who funded collecting expeditions to South America and Africa. Taczanowski, working in the second half of the nineteenth century, built one of the world’s most important Neotropical bird collections - over 4,500 specimens from Peru that remain a reference point for ornithologists today.

The Second World War brought catastrophe. In September 1939, SS-Sonderkommando Paulsen - a special unit tasked with looting cultural and scientific assets - confiscated part of the collections. After the Warsaw Uprising in 1944, fire destroyed approximately 2 million insect specimens and 17,000 library volumes. These losses are irreversible: each specimen was a unique biological record.

After the war, the institute rebuilt - slowly but steadily. Collections were replenished through decades of systematic fieldwork. Repatriation of looted specimens continues to this day: the last known batch returned from Salzburg as recently as 2022. The institute publishes five peer-reviewed journals (including Acta Chiropterologica and Acta Ornithologica), and its research covers the systematics, ecology, and evolution of animals from arachnids to mammals.

The 2023 move from Wilcza to Twarda closed a chapter - Wilcza 64 had been the institute’s home for decades. The new location is a fresh start, but public accessibility remains limited. This is a research institution that occasionally opens its doors, not a museum that occasionally does research. The distinction matters.