Defying gravity: Kaunas Science Island’s 250-tonne marvel lifts curiosity

On Nemunas Island in Kaunas, Lithuania, a striking architectural experiment invites visitors to reconsider what’s possible in both physics and design. The centerpiece is a 250-tonne metal disc, seemingly suspended in mid-air, that signals the city’s ambition to blend spectacle with substance. Below, Kaunas Science Island houses the Baltic region’s most advanced planetarium and 140 interactive exhibits, aiming to engage everyone from curious families to seasoned technologists.

The most Instagrammable building

The 250-tonne, 27-meter disc is more than an architectural flourish. Supported by a single beam, it creates a visual illusion that draws crowds and social media attention alike. Yet the design is not just for show: the green roof doubles as a public terrace, integrating the building into the island’s parkland and offering visitors a vantage point over the Nemunas River and Kaunas Old Town.

“Families often plan to stay for two hours but end up spending the entire day here. Visitors experiment, compete, and learn through play. Time flies by,” says Eglė Bagočiūnaitė, Head of Communications at Kaunas Science Island.

Outer space in 8K resolution

Central to the Science Island experience is an 11-meter dome hall, equipped with what is billed as the Baltic region’s most advanced space projection system. Here, real-time feeds from satellites and observatories are paired with ultra-high 8K films, offering immersive journeys through the Solar System and beyond. The technology is impressive, but the real differentiator is how it brings abstract science down to earth for a broad audience.

140 Interactive Exhibits

Hands-on exhibits are everywhere. The permanent exhibition, Human. Nature. Machine., interrogates the intersection of technology and safety, with a rotating suspended car that has quickly become a visitor magnet. It’s a reminder that interactivity, not just information, is what drives engagement in modern science centers.

The Limits of the Human Body exhibition asks a provocative question: how far can we go in replacing human parts with artificial ones before we cross the line into robotics? For younger visitors, the interactive aquarium—where children’s digital fish swim on a large screen—proves that learning and play are not mutually exclusive.

With demand for planetarium sessions often outstripping supply, advance booking is a must during peak times. The ticketing model is modular, with separate options for the museum, planetarium, and STEM workshops, and targeted discounts for families.

More attractions in Kaunas

Kaunas itself is compact and navigable, with major attractions, restaurants, and leisure spots all within easy reach. For visitors, Science Island is less a standalone destination and more a launchpad for a broader city experience.

- “Žalgiris” Swimming Pool: A modern aquatic center located on Nemunas Island, featuring a 50-meter Olympic-size pool. The facility includes a dedicated children's area, 11 sauna rituals, and an outdoor hot tub overlooking the island.

- “Žalgiris” Arena: The largest arena in the Baltic region and the home venue of the “Žalgiris” basketball club, hosting over 300 events annually.

- Kaunas City Museum: Housed in the historic 14th-century Kaunas Castle, the museum offers insights into local history through medieval artifacts. Virtual reality simulations illustrate the original fortress and the daily lives of its historic inhabitants.

- Aleksotas Funicular: One of the few remaining operational historical funiculars in the Baltics. Its wooden carriages have carried passengers up Aleksotas Hill for 90 years, offering panoramic views of the Nemunas River and the Old Town.

About Kaunas IN

Kaunas IN fosters favorable conditions for business growth, tourism, filmmaking, and international marketing in Kaunas. The agency’s responsibilities include attracting foreign direct investment, supporting business development, enhancing Kaunas’s appeal as a travel destination, and providing comprehensive support to filmmakers.