While Modernism and the later coined 'International-Style' is more than a century old, some of the icons have or very soon will pass a century of existence.

Construction began on the Van Nelle Factory 100 years ago. The Rietveld Schröderhuis (Netherlands) was completed 100 years ago and so was the Cité Frugès, Maisons La Roche et Jeanneret, and Petite villa au bord du lac Léman (Le Corbusier). The Haus am Horn (Bauhaus) just passed a century since its construction.

Additionally, a nomination is progressing to highlight the works of Alvar Aalto (Finland).

Seminal Moments in Modernism (non-exhaustive):
- Frank Lloyd Wright's Unity Temple constructed 1905 - 1908 and the Robie House designs drafted soon after
- Josef Hoffmann's Stoclet House 1911
- Frank Lloyd Wright's Wasmuth Portfolio published in Germany 1911
- Walter Gropius' Fagus Factory 1913
- Bauhaus Established 1919
- Emigration of Richard Neutra to the United States 1923
- Le Corbusier's Five Points of Architecture 1923
- Gerrit Rietveld's Rietveld Schröderhuis 1924
- Le Corbusier's Villa La Roche 1925
- International Congresses of Modern Architects 1928
- Richard Neutra's Lovell House 1928
- Ludwig Mies van der Rohe and Lilly Reich's Villa Tugendhat 1930
- Leendert van der Vlugt's Van Nelle Factory opens 1931
- Le Corbusier's Villa Savoye 1931
- Bauhaus Architects design 'The White City of Tel Aviv' starting in the early 1930's
- Phillip Johnson's Modern Architecture: International Exhibition (MOMA) 1932
- Alvar Aalto's Paimio Sanatorium 1933
- Bauhaus Closed 1933
- Emigration of Mies van der Rohe and Walter Gropius to the United States 1937
- Alvar Aalto's Villa Mairea 1938
- Oscar Niemeyer and Roberto Burle Marx' Pampulha 1940
- Case Study Houses Los Angeles 1945 - 1966
- Richard Neutra's Kaufmann Desert House 1946
- Luis Barragán House and Studio 1948
- Charles and Ray Eames House 1949
- Ludwig Mies van der Rohe's Farnsworth House and works on 860–880 Lake Shore Drive 1951
- Le Corbusier's Chandigarh 1951-1953
- Mid-century modern term first used in print 1953
- Eero Saarinen's General Motors Technical Center 1955
- Oscar Niemeyer's Civic design for Brasilia 1956-1960
- Ludwig Mies van der Rohe and Philip Johnson's Seagram Building 1958
- Pierre Koenig's Stahl House 1960
- Oscar Niemeyer's Rachid Karami International Fair-Tripoli designed 1962-1967
- Early concepts on Postmodernism architecture are formalized 1966-1972

Undoubtably, I am missing plenty of significant moments in the History of Modernism Architecture. However, my overall point is to highlight inscribed properties, while also exploring what might be missing. I am fairly confident, buildings by Mies van der Rohe will be included on the US Tentative List in the future.

I have been slowly visiting many of these iconic Modernist buildings (that are located in the US) over the past 5 years, with Mies van der Rohe's Farnsworth House being the most recent. I have organized these photos in a Flickr Album titled: Spread of International Style Modernism to the United States, which is focused on buildings by Mies van der Rohe, Richard Neutra, and Walter Gropius.

Just visited Louis Kahn's Salk Institute today and was certainly impressed. I never knew how much Louis Khan collaborated with Luis Barragán on the project. Previously, vantcj1 highlighted Khan's works in the 'Top Missing' discussion thread. I'm disappointed that the Salk Institute has not pursued National Historic Landmark status, or even a place on the National Register! I suppose the US is only just getting to Modern architecture, let alone what follows!

Coming off a visit to Farnsworth House only a few weeks ago, I am reminded how this community is truly a repository of useful information related to architecture.

You have stimulated me to research further! I don't know if you have read this article - "Consequential Encounters: Luis Barragán's Influence on Louis Kahn". If not, it may be of interest both in relation to Khan but also, and currently more significantly regarding WHS matters, to Barragan

I have not read it previously (quiet interesting), it perhaps enhances our understanding behind the 2004 inscription of his home and studio in Mexico City. At least in the case of Louis Khan, Barragan's influence is greater than acknowledged. Yet, it does not seem to have eluded ICOMOS in 2004!

Here is one such description found in the Advisory Body Evaluation that hints at Barragan's influence. While not excplicitly naming Khan, it eludes to Barragan's influence on his contemporaries.

"While going in some depth with the influences that Luis Barragán has received, his relation to contemporaries is not discussed in the nomination document. Nevertheless, in consultation with DoCoMoMo and taking note of existing studies, ICOMOS is satisfied that the work of Barragan has been greatly influential in the development of contemporary architecture in the second half of the 20th century especially in the American continent. His major works have also been introduced in the teaching of various architectural schools elsewhere in the world. The greatest impact of his work has been in the design of landscape gardens and urban landscapes." - AB Evaluation

I just wanted t say thanks for this thread Kyle, I haven't had much of a chance to engage with it, but it is really helpful and enlightening.

I missed the Salk institute when I was in Southern California a decade ago, it still looks rather immaculate which is impressive.

Off-course, some of your early reviews and discussions on this forum got me more interested in visiting Modernist sites in the first place! I can also say the same for many of Solivagant's reviews and others.

There has been a major conservation plan initiated in 2018 by the Getty. Completed in 1965, the Salk Institute is now approaching its 60 year anniversary. While not strictly beloning on the list above, Kahn's architecture was greatly influenced by the Modern Movement. I actually think the Salk Institute which is often viewed as Kahn's masterpiece or 'defining work' would be preferable as a single nomination rather than a serial property (or a transnational nomination that would include the Jatiyo Sangshad Bhaban in Bangladesh), one can hope the site will be designated as a National Historic Landmark in the coming years. This would pave the way for potential inclusion on a future US Tentative List update.

https://www.salk.edu/news-release/salk-awarded-keeping-it-modern-grant-by-getty-foundation/

I have been organizing Modernist Albums on Flickr after new or return visits. Moreover, I've started more seriously identifying key modernist buildings on my future itinerary across the United States. In Mexico, eventually I will try again to see Luis Barragán House and Studio, after only seeing the exterior some years ago. Farnsworth House and the Salk Institute were the most impressive and perhaps the only sites on this list that could be inscribed alone.

Schindler House
Architect: Rudolph Schindler
Location: West Hollywood, California
Constructed: 1922

Textile Block Homes: Millard, Storer, Ennis, Freeman Houses
Architect: Frank Lloyd Wright
Location: Los Angeles / Pasadena, California
Constructed: 1923-24

Neutra VDL Research House II
Architect: Richard Neutra
Location: Los Angeles, California
Constructed: 1932, 1964 (rebuilt after fire)

Gropius House
Architect: Walter Gropius
Location: Lincoln, Massachusetts
Constructed: 1938

Eames House
Architect: Charles and Ray Eames
Location: Pacific Palisades, California
Constructed: 1949

Farnsworth House
Architect: Ludwig Mies van der Rohe
Location: Plano, Illinois
Constructed: 1951

860–880 Lake Shore Drive Apartments
Architect: Ludwig Mies van der Rohe
Location: Chicago, Illinois
Constructed: 1951

Stahl House
Architect: Pierre Koenig
Location: Los Angeles, California
Constructed: 1960

Marin County Civic Center
Architect: Frank Lloyd Wright
Location: San Rafael, California
Constructed: 1960

Salk Institute
Architect: Louis Khan
Location: La Jolla, California
Constructed: 1960

Plan to visit: non-exhaustive

- Frank Lloyd Wright's Hanna–Honeycomb House (California)
- Philip Johnson Glass House (Connecticut)
- Louis Khan's Yale Center for British Art (Connecticut)
- Frank Lloyd Wright's Dana–Thomas House (Illinois)
- Ludwig Mies van der Rohe's S. R. Crown Hall (Illinois)
- Frank Lloyd Wright's Samara House (Indiana)
- Frank Lloyd Wright's Zimmerman House (New Hampshire)
- Frank Lloyd Wright's Price Tower (Oklahoma)
- Louis Khan's Kimbell Art Museum (Texas)

I have visited the PSFS Building (PA) and Seagram Building (NY), but both sites are limited / sporadic regarding any tours or anything beyond the exterior / lobby. I am probably missing a few, so if you have a suggestion, please post it!