
Address: C/ de Balmes, 132, 134, 08008 Barcelona, Spain
The 20th century ushered in widespread urban renewal throughout Barcelona, culminating in its landmark Eixample district, which showcases some of Barcelona's most distinctive Catalan art-nouveau, or modernista, buildings. The Catalan Antoni Gaudí, one of the most eminent architects, designed buildings such as La Pedrera, the Casa Batlló, and the Sagrada Família church, which have become world-famous landmarks.
In 1992, Barcelona gained international recognition by hosting the Olympic games, which brought about a massive upturn in its tourism industry. For visitors, this has translated into the very modern yet incredibly old city you see now in the 21st century, where new elements work to both preserve and celebrate the city’s heritage and origins.
Barcelona has plenty of outdoor markets, restaurants, shops, museums, and churches. The city is also very walkable, with an extensive and reliable Metro system for more far-flung destinations. For a complete overview, see wikitravel.org or visit barcelonaturisme.com.

Barcelona is a vibrant and accessible city with excellent transportation links. Whether you're arriving by plane, train, or other means, there are convenient options to reach your destination. Below, you'll find detailed guidance to ensure a smooth journey to the conference venue:
By Plane: The international airport of Barcelona, Barcelona-El Prat, is located 10 km from the city center. It is well connected to major airport hubs in Europe and various locations worldwide. For more information about the airport and flights, please visit their official website. Once you arrive at the airport, you have several options to reach the venue.
By train: Take the TRAIN R2 NORD. Disembark at Barcelona Sants station. From there, you can either take METRO L5 (get off at Diagonal) or a taxi, available just outside the station. The train from the airport costs EUR 4.60, and the metro costs EUR 2.55. Tickets can be purchased at train stations and metro stops, respectively. A taxi from the station to the conference venue costs approximately EUR 10.
By metro: Take LINE L9, which connects Barcelona Airport (both Terminal 1 and Terminal 2) to the city. Disembark at Collblanc station, and from there, transfer to METRO L5 (get off at Diagonal). The metro from the airport costs EUR 5.50, and the city metro costs EUR 2.55. For schedules, route planning, and ticket information, check the official website of Barcelona’s public transport system (TMB).
By taxi: Taxis are readily available just outside the arrivals area. A taxi from the airport to the conference venue costs approximately EUR 40–45. Alternatively, VTC apps like Bolt and Freenow also operate in Barcelona and might offer more competitive rates.
We want your stay in Barcelona during the conference to be as comfortable as possible. With that in mind, we have agreed on a discount with several hotels to make your choice of accommodations easier. Please book your accommodation online and contact the hotels directly with any issues or requests related to accommodation bookings.
We are delighted to announce that the following hotels will offer a discounted price for all Entropy 2026 attendees:
These accommodations have been carefully chosen to provide comfort and convenience for our guests while ensuring affordability through negotiated rates. Prepare to make the most of your conference experience with our exclusive lodging options designed to enhance your stay.
Important Security Notice:Please note that you must apply for your own visa application. MDPI is not responsible for any visa application. However, MDPI can provide a Visa Support Letter. To be eligible for such a document, the criteria below must be fulfilled.