FIRST LOOK: Prague's Signal Festival has tower power in 2025

Prague’s nights will glow again this October as the Signal Festival, the country’s largest showcase of digital and creative culture, returns for its 13th edition. Organizers confirmed that from Oct. 16–19 the festival will feature two highly anticipated video mappings, including one on the Old Town Hall tower—a first in the event’s history.

Italian studio MammasONica will transform the nearly 70-meter tower with OVERLOЯD, a monumental projection exploring the tension between data and emotions. Created especially for the historic landmark, the work will use two walls of the tower as its canvas, radically reshaping how one of Prague’s most famous monuments is seen.

For the first time in three years, videomapping will also return to the façade of the Basilica of St. Ludmila on Náměstí Míru. Spanish collective V.P.M. will present ITERACE (The Infinite Rhythm of the City), a laser-enhanced projection blending futuristic structures with the church’s neo-Gothic geometry. Both outdoor video mappings will be free to the public.

Alongside its open-air program, the festival will again host Signal INSIDE, the ticketed portion staged in architecturally distinctive interiors around central Prague. This year’s INSIDE lineup includes seven light installations, immersive large-format projections, and interactive works designed to engage visitors directly.

Early bird ticket sales open Aug. 19, limited to 1,000 passes. One-day tickets are priced at CZK 290, full festival passes at CZK 390, and VIP packages at CZK 1,690. VIP benefits include skip-the-line entry, private shuttle service, and access to official afterparties.

The full festival program will be unveiled in the first week of September, but organizers say the 2025 edition promises a mix of international and Czech talent, continuing Signal’s tradition of blending cutting-edge art with Prague’s historic streetscape.

“This year’s festival explores the interconnectedness of a world in which technology, nature, and humans form a single whole,” the festival teased on Instagram. “From cool blue to deep magenta and vibrant orange, the colors of this year’s visual express a belief in the harmony of technology and nature.”

Since its launch in 2013, Signal Festival has grown into the Czech Republic’s most visited cultural event, combining contemporary visual art, light design, and urban space. It regularly collaborates with leading global artists and festivals while supporting emerging Czech creators, transforming Prague each autumn into a city-wide gallery of light.

Over its 12-year history, the festival has drawn more than 4.5 million visitors.