Oliver Wainwright

Can robots make the perfect Aperol spritz? – Venice Architecture Biennale 2025 review

From 3D-printing with bacteria to cocktail-mixing humanoids, from the future of space suits to reassurances about climate change, this mind-boggling rollercoaster of a show could do with a more focused curatorial vision

A teetering wall of gungy green bricks greets visitors to this year’s Venice Architecture Biennale, forming an imposing blockade near the start of the show. The blocks are made of bio-cement, incorporating fishing nets and algae dredged from the depths of the Venetian lagoon. The wall’s steeply sloping gradient follows the curve of global population growth over the last millennium, terminating abruptly near the ceiling to represent the coming peak of humanity.

“What awaits us on the other side of the hill?” asks Carlo Ratti, director of this year’s biennale, as he stands in front of the momentous cliff. The answer is a great heap of gunge. A festering mountain of mould-like gunk is piled up against the back of the wall, apparently an allegory for microbial intelligence. But it could also be a metaphor for much of the work that follows in the sprawling exhibition hall. “The installation reaches towards an alternative ethics,” an opaque caption tells us. “A trans-scalar, trans-species, collaborative plasticity, that is itself just intelligence.”

We’re having sex inside Moby Dick! The wild architectural world of Japan’s love hotels

From cruise ships to UFOs, from King Kong to a giant whale, half the sex in Japan may take place in its dazzlingly imaginative love hotels. But have some become just too seedy? Our writer checks in

Do whales make you horny? How about UFOs? Maybe you’ve always dreamed of having a tryst in a fairytale castle, or making love inside a gigantic biscuit tin? Whatever your weird fantasy may be, it can probably be catered for on a roadside somewhere in Japan, if a new book on the curious phenomenon of love hotels is anything to go by.