The St. Louis Arch (1965), Saarinen's most recognizable architectural feat, is located in the heart of St. Louis.

The old barn's foundation, re-stacked by a local stonemason, was reused as a rustic retaining wall for the pool area. The property also came with a corn crib and blacksmith shop as old as the barn, seen behind the pool, which are both used for storage now. St. Tropez chaises from Kingsley-Bate line the pool.

Hiroshi Nakamura & NAP used 87 translucent bricks to reframe a family’s connection to nature and the city.

St. John's Lutheran Church.

The reinforced-concrete Church of St. Wenceslas, completed in 1930.

The new East Building seen from Fine Arts Drive (North façade). Image courtesy of the Saint Louis Art Museum and Architectural Wall Systems. Photo by: Jacob Sharp.

Commissioned as part of the popular Chinese reality television show Beautiful House, Beijing–based studio Evolution Design Architects was given a budget of 600,000 RMB (approximately $87,965 USD) for construction and interior design, as well as just two months to complete the transformation.

Le Corbusier, St. Pierre Church, Firminy, France

The Lewis and Clark library branch in Moline Acres, Missouri, north of St. Louis. Photograph copyright 2012 Andrew Raimist, RaimistDesign.com.

Tin Cup's in St. Paul, Minnesota.

The interior of the library as it appeared in 1963. Photo originally published in the St. Louis Globe-Democrat, courtesy of Lindsey Derrington.

Wainwright Building, St. Louis, Missouri (1891)Louis Sullivan's Wainwright Building is referred to in the documentary as the "first building that reveled in height." Sullivan claimed to have conceived the design in only three minutes and wrote that a skyscraper "must be every inch a proud and soaring thing." Sullivan's modern, steel-frame building set the tone for the next century of skyscrapers.

”Cosmology of St. James” by Lola Ley This kinetic sculpture of leather, metal and glass represents “St. James as a whole universe itself.”

”Cosmology of St. James” by Lola Ley Ley’s work will reflect the neighborhood’s traditions, incorporating shoe patterns by John Lobb Bootmaker’s, and the influence of famous residents, such as Sir Isaac Newton, who lived on Jermyn Street. “For him, it was all about innovation and understanding the world,” says Ley. “I wanted to make that connection with craft and making, St. James as a whole universe itself. It’s a small, mysterious world with bespoke crafts and big, grand houses with palatial facades. You have these different satellites and different hubs. The cosmology idea illustrates planet’s orbits.”

A preliminary rendering of the proposed new library building. Image courtesy of KAI Design & Build.

The windows bear the signature of Harmon's firm, Emil Frei & Associates. Photograph copyright 2012 Andrew Raimist, RaimistDesign.com.

A rendering of a proposed 3,500-square-foot addition that would preserve Dunn's original building. This proposal was designed by Neil Chace of SPACE Architects and Modern STL's board president; Jeremy Clagett of SPACE Architects; and Jon Hagar of Fox Architects. Image courtesy of Modern STL.

Another preliminary rendering of the proposed new library building. Image courtesy of KAI Design & Build.

Designed by the architect Frederick Dunn, the library building opened to the public in January 1963. Photo by Lindsey Derrington.

The stained glass windows, designed by Robert Harmon of Emil Frei & Associates, featured Meriwether Lewis, William Clark, and their interpreter and guide, Sacagawea, as well as buffaloes, fish, and other flora and fauna. Photograph copyright 2012 Andrew Raimist, RaimistDesign.com.

A detail of Robert Harmon's stained-glass windows. Photograph copyright 2012 Andrew Raimist, RaimistDesign.com.

Photograph copyright 2012 Andrew Raimist, RaimistDesign.com.

The interior of the library as it appears today. Photo by Lindsey Derrington.

Oscar Niemeyer, Church of St Francis of Assisi (1943) The Brazilian master of curved concrete made his mark with the Pampulha Architectural Complex, which showcased the radical Church of St. Francis of Assisi. This modernist touchstone with a parabolic roof and polychromatic tiles was such a departure from existing forms that one politician suggested demolishing it.

Marcel Breuer, St. John’s Abbey (1961) Designed by a Bauhaus icon, the modernist Minnesota church greets the faithful with a bell tower perched upon a curvaceous concrete stand. Breuer follows up a strong introduction with the church itself, boasting a massive wall of hexagonal stained glass and bold concrete tresses. Photo courtesy Wikimedia Commons

The design connected academic spaces with outdoor pathways and gathering spots.

SOM was responsible for a transformation of St. Albans School, a college preparatory school in Washington, D.C. The renovation involved creating a more seamless flow between campus spaces.

Moscow, Russia-Moscow is an architectural force to be reckoned with. From the universally recognizable onion domes of St. Basil’s Cathedral to the constructivist lattice webbing of the Shukhov Tower, Moscow showcases a variety of architectural styles. It was during Soviet times that Moscow received its most fervent revamping as Stalin aimed to bring modernity to the city through architecture. Since then, there has been heavy criticism concerning the destruction of Moscow’s historical buildings and revived efforts to preserve those still standing. Photo by: ademkader.

London, England-Hailed as one of the world’s most important business, financial, and cultural centers, London contains four of UNESCO’s World Heritage Sites (Tower of London, Westminster Abbey, Greenwich, and Kew Gardens) within city limits. In addition, this major global city hosted the Great Exhibition in 1851 in one of the most ambitious and talked about architectural structures at the time, the Crystal Palace. Although that building was subsequently destroyed in a fire, London still boasts of the preservation of architectural rock stars such as the Banqueting House, Nelson’s Column, the British Museum, St. Paul’s Cathedral, and the Gherkin. Photo by: Steve Wilson.

St. Catherine's Monastery in South Sinai, Egypt-The oldest continually operated library in the world, St. Catherine's Monastery has been around since it was first built by the order of Byzantine Emperor Justinian I, sometime around 564 AD. It currently holds over 3,000 religious and educational manuscripts and approximately 8,000 printed books, including first editions of Homer and Plato. Photo: BBM Explorer

St. Mark chair by Martino Gamper for Moroso, Hall 16 Stand A22/B29 at Rho.

Organizations such as Friends of the Los Angeles River have been working on revitalizing the waterfront for decades, reserving years of planning and development that led a once vital source of water for agriculture to become a concrete-covered waterway known known by many as the site of gritty Hollywood chase scenes. Play the LA River wants to add to that conversation around revitalization.

In the Catalan town of Santpedor, architect David Closes intervened on the remnants of a derelict Franciscan convent to create a modern auditorium.

The massing and materials are in response to existing surroundings, with use of rendered brickwork, natural stone, mesh, and patinated copper sheet, as seen applied to the walls and ceiling of the chapel's sanctuary. [via Architizer]

The Chapel of St. Lawrence by Avanto Architects, which opened in 2010, is set in a historic site in Vantaa, Finland. The new building links the town's old medieval stone church and bellcote to a new, modern volume.