Ahead of the opening of the Obama Presidential Center in Chicago next week, we take a look at 13 of the completed presidential libraries in the US. More about The architecture of 13 presidential libraries from Hoover to Bush
As part of a series of pavilions installed in an Iowa park system, Arizona design studio I/Thee has created the Puddle Pavilion, which is topped with caps made of "splattered" algae-based resin. More about I/Thee forms "frozen river in the sky" with algae-based Iowa pavilion
Promotion: pavers by American brick manufacturer The Belden Brick Company define the urban landscape of historic downtown Cedar Falls, Iowa, USA, recently revamped by Iowa-based studio Snyder & Associates. More about Belden clay pavers add character to Cedar Falls' revamped downtown district
Arizona architecture studio I/Thee has created a public installation in an Iowa park composed of furniture affixed into two rammed earth walls that were made to look eroded by applying water pressure. More about I/Thee places seating within "intentionally eroded" earthen walls for Iowa park
Snøhetta has completed an addition to a Norwegian-American museum and folk art school in Iowa, which includes a large wooden oculus and a mass-timber frame. More about Snøhetta includes wooden oculus for Norwegian-American museum extension in Iowa
Polycarbonate walls and a row of tall window boxes bring diffused sunlight into the Iowa City Public Works building by US firm Neumann Monson Architects. More about Soft light fills Iowa municipal building by Neumann Monson Architects
An elevated running track encircles this sports centre that Neumann Monson Architects has designed for the residents of Lone Tree, Iowa. More about Yellow accents brighten Lone Tree Wellness Center by Neumann Monson
US architecture firm Neumann Monson has completed a glass-fronted parking garage in Des Moines, Iowa, as part of a scheme to help revitalise the city's East Village neighbourhood. More about Neumann Monson creates zero-energy East 2nd Street Parking Garage in Des Moines
Neumann Monson Architects has designed a municipal services building for the city of Des Moines, to consolidate its various departments and facilitate collaboration. More about Neumann Monson completes shared building for Des Moines municipal services
The open floors of a 117-year-old, run-down factory in Des Moines, Iowa, have been transformed into offices by Neumann Monson Architects. More about Neumann Monson converts century-old Iowa factory into offices
Neumann Monson Architects has restored a 1850s farmhouse in Iowa, stripping away a series of poorly coordinated additions before updating it for the owners' "modern" lifestyle. More about Neumann Monson turns Iowa farmhouse from "dog's dinner" into liveable home
American studio LMN Architects has completed a performing arts centre for the University of Iowa that features twisted terracotta panels, glass shingles and bespoke acoustic panels made of metal and felt. More about LMN Architects combines textured surfaces for Iowa City concert hall
American firm Steven Holl Architects has completed an Iowa art school that consists of irregularly stacked concrete volumes sheathed in weathering zinc and stainless steel. More about Visual Arts Building by Steven Holl opens at the University of Iowa
This multi-storey parking garage in Des Moines, Iowa, by local firm Substance Architecture features a yellow-coloured aluminium screen that permits air flow while blocking views of cars (+ slideshow). More about Substance Architecture clads Iowa car park in a golden screen