Readers are hotly debating the completion of the Obama Presidential Center, featuring a monumental granite-clad tower surrounded by artificial hills, by US studio Tod Williams Billie Tsien Architects.

Launched to mark the centenary of Antoni Gaudí's death, the Sagrada Familia set is the largest ever created by toy brand Lego. Readers are impressed.

Mexican studio Lanza Atelier has created A Serpentine, a "simply beautiful" snaking brick-walled structure for the 25th edition of the Serpentine Pavilion in London.

Commenters aren't convinced by Ferrari and HP's collaboration on a laptop inspired by the aesthetics and engineering of supercars.

Dutch studio MVRDV has designed the faceted La Vallée Verte housing in Bordeaux, France. Readers share their thoughts.

Commenters are discussing a playful cat tree that provides a design-forward perch for feline friends by Swedish designer Gustaf Westman.

Tim Ronalds Architects has converted a series of 17th- and 18th-century buildings in Clerkenwell, London, into the Quentin Blake Centre for Illustration. Commenters are praising the "interesting re-use of an old building".

Readers are in love with the Laugarás Lagoon, a geothermal spa topped by a grass-covered roof by Icelandic studio T.ark Architects.

The completed Obama Presidential Center represents a concerning shift in the image ex-presidents want to convey, writes Anthony Paletta. Commenters weigh in on the debate.