The 27th Central European Number Theory Conference will take place at Hotel VP1, located in the Dolní Vítkovice area of Ostrava, Czech Republic, from 6 to 10 September 2027.
Dolní Vítkovice
Dolní Vítkovice is a unique industrial heritage site in the heart of Ostrava. The former coal-mining and iron-production complex has been transformed into a vibrant centre for science, education, culture, and public events.
Its distinctive industrial architecture—including the former blast furnaces, Bolt Tower, and the Gong multifunctional auditorium—makes it one of Ostrava’s most remarkable landmarks.
The venue is easily accessible from the city centre by public transport. Detailed travel instructions will be provided closer to the conference.
About Ostrava
Ostrava is the third-largest city in the Czech Republic and the centre of the Moravian-Silesian Region. Located in the north-east of the country, close to the Polish and Slovak borders, the city is easily accessible by train, car, and air.
Once known primarily for coal mining and steel production, Ostrava has developed into a lively university and cultural city while preserving its distinctive industrial character. Visitors can explore its technical heritage, architecture, galleries, cafés, and green surroundings, with the Beskydy Mountains located nearby.
More information and suggestions for your visit can be found on the official Visit Ostrava website.
City transport
To use the public transport of the City of Ostrava, you have to buy a ticket. However, paper tickets are no longer available, an electronic ticket is needed for travel.
How to buy an electronic ticket?
First option is to buy a ticket using your contactless debit/credit card directly inside the bus/tram/trolleybus at check-in terminals (yellow machines are located close to the doors, menu can be switched into English). Just place your card on the green symbol on the machine and wait until the notice "You have a valid ticket" shows on the screen. If you get off the bus/tram/trolleybus, just place the card on the green symbol again to sign out.
This system is smart and it checks the length of travel and thus the proper price on its own. However, if you travel several times during the day, maximal price to pay in total is the price of a 24-hour ticket.
Second option is to buy a "credit ticket". It is actually a prepaid plastic card (100 CZK, 200 CZK,…) which can be bought at ticket machines (both cash and cards are accepted) or at Ostrava public transport information centres. You can also add credit to your card both in machines and offices. This ticket is then used in the same way as the contactless debit/credit card.
In both options, if you change the tram/bus/trolleybus, you have to place the card again when boarding.
Ticket price: see here
If you use the bus or trolleybus in the night (from 20:00 till 4:00), you can get on through the front door only and you have to buy or use your ticket as it was written above. This does not apply to the tram.
For more information, visit the official website of Ostrava Public Transport.
Enjoy your stay in Ostrava – Tourist attractions