We may earn revenue from the products available on this page and participate in affiliate programs. Under the spidery lattice of Berlin's Funkturm radio tower, the IFA 2025 consumer electronics expo spills through every lair and level of the Messe grounds. These century-old show floors began as broadcasting industry exhibition halls and never stopped mutating. I have a diagram to guide me, but it might as well be a Zelda minimap leading me through this boss fight masquerading as a building. It's a series of architecture you operate: escalators are levers, skybridges, secret passages; many different doors, literal puzzle switches unlocking the next gear reveal .