2017 · Atlas Obscura
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Color-coded signs direct drivers on a network of roads around the outskirts of Pittsburgh.

cars cities color geographic markers industrial infrastructure navigation roads signs urban planning
21531 Source: Atlas Obscura

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Exposition Park Marker

2022 · United States

Dr. Tumblety’s Time-Inspired Specialty Shop

2022 · United States

Winter Mausoleum

2022 · United States

Armstrong Tunnel

2021 · United States

Former Pittsburgh Stock Exchange

2021 · United States

The Zenith

2020 · United States

Shrine of the Blessed Mother

2020 · United States

Pittsburgh’s Cultural District

United States

The City of Bridges: A Walk Through Pittsburgh

United States

Cultural Heritage: Pittsburgh in 2317 #MCN2017

United States

Pennsylvania Road Trip: From Pittsburg to Philadelphia with Tim Richards. Travelbook

2013 · United States

Fort Pitt Blockhouse

2020 · United States

The Bumblebee Beach

2019 · United States

Johnny Angel’s Ginchy Stuff

2019 · United States

Gene Kelly’s Pittsburgh Plaque

2019 · United States

The First Heinz Pickle Charm

2019 · United States

Bacchus House

2019 · United States

A Hidden Park in Pittsburgh

2018 · United States

The Original Puppets from ‘Mister Roger’s Neighborhood’

2018 · United States

Photo Antiquities Museum

2018 · United States

Monument to the Pittsburgh Steelers’ “Immaculate Reception”

2017 · United States

Homewood Cemetery

2018 · United States

This Old Testament Garden Features 100 Plants From Biblical Times

2017 · United States

A Rare Example of Natural Red Clay Tennis Courts

2017 · United States

The Weeping Glass

2018 · United States

The Soot-Covered Columns of Carnegie Mellon

2017 · United States

reCARstruction

2018 · United States

Pittsburgh’s Last Wooden Street

2018 · United States

Magneto Mural

2018 · United States

Graphic Arts Technical Center

1965 · United States

Wean Hall, Carnegie Mellon University

1971 · United States

Wesley W. Posvar Hall (WWPH), University of Pittsburgh

1975 · United States

Jennie King Mellon Library, Chatham College

1973 · United States

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i
To represent a masterpiece of human creative genius. 261 ii
To exhibit an important interchange of human values, over a span of time or within a cultural area of the world, on developments in architecture or technology, monumental arts, town-planning or landscape design. 480 iii
To bear a unique or at least exceptional testimony to a cultural tradition or to a civilization which is living or which has disappeared. 514 iv
To be an outstanding example of a type of building, architectural or technological ensemble or landscape which illustrates (a) significant stage(s) in human history. 642 ix
To be outstanding examples representing significant on-going ecological and biological processes in the evolution and development of terrestrial, fresh water, coastal and marine ecosystems and communities of plants and animals. 137 v
To be an outstanding example of a traditional human settlement, land-use, or sea-use which is representative of a culture (or cultures), or human interaction with the environment especially when it has become vulnerable under the impact of irreversible change. 172 vi
To be directly or tangibly associated with events or living traditions, with ideas, or with beliefs, with artistic and literary works of outstanding universal significance. (The Committee considers that this criterion should preferably be used in conjunction with other criteria). 256 vii
To contain superlative natural phenomena or areas of exceptional natural beauty and aesthetic importance. 151 viii
To be outstanding examples representing major stages of earth's history, including the record of life, significant on-going geological processes in the development of landforms, or significant geomorphic or physiographic features. 98 x
To contain the most important and significant natural habitats for in-situ conservation of biological diversity, including those containing threatened species of outstanding universal value from the point of view of science or conservation. 168

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