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A '''Subway''' is the North American term for a rapid transit system that runs underground for much or all of its route.  Outside North America, they may be known as an underground, metro, or mass transit railway. Subways require large populations to run efficiently and run at a "grade separation" from other vehicles and run frequently.  This means that they exist in the largest cities.

A '''Subway''' is the North American term for a rapid transit system that runs underground for much or all of its route.  Outside North America, they may be known as an underground, metro, or mass transit railway. Subways require large populations to run efficiently and run at a "grade separation" from other vehicles and run frequently.  This means that they exist in the largest cities.

The first subway was opened in [[London]] in 1863, (where it is called the "[[Underground]]") although many more major cities now have subways systems.  The [[Boston]] subway opened in 1901 and the [[New_York_City|New York]] subway first opened in 1904.

The first subway was opened in [[London]] in 1863, (where it is called the "[[Underground]]") although many more major cities now have subways systems.  The [[Boston]] subway opened in 1901 and the [[New York City|New York]] subway first opened in 1904.

==List of cities with subways==

==List of cities with subways==

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! City !! System Name

! City !! System Name

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|[[Barcelona]], [[Spain]]|| Barcelona Metro

|[[Barcelona]], [[Spain]]|| Barcelona Metro

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|[[Boston]], [[United States]]|| Massachusetts Bay Transportation Authority (or "T")

|[[Boston]], [[United States]]|| Massachusetts Bay Transportation Authority (or "T")

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|[[Budapest]], [[Hungary]] || Budapest Metro

|[[Budapest]], [[Hungary]] || Budapest Metro

|[[Cairo]], [[Egypt]] || Metro

|[[Cairo]], [[Egypt]] || Metro

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|[[Changchun]], {[People's Republic of China|China]] || Changchun Metro / LRT

|[[Changchun]], [[People's Republic of China|China]] || Changchun Metro / LRT

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|[[Chicago]], [[United States]]|| Chicago "L"

|[[Chicago]], [[United States]]|| Chicago "L"

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|[[Pyongyang]], [[North Korea|Democratic People's Republic of Korea]]||Pyongyang Metro

|[[Pyongyang]], [[North Korea|Democratic People's Republic of Korea]]||Pyongyang Metro

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|[[Samara]], [[Russia]] || Samara Metro

|[[Samara]], [[Russia]] || Samara Metro

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|[[Sankt Peterberg]], [[Russia]] || Sankt Peterberg Metro

|[[Sankt Peterberg]], [[Russia]] || Sankt Peterberg Metro

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|[[Seville]], [[Spain]] || Metro de Sevilla

|[[Seville]], [[Spain]] || Metro de Sevilla

|[[Yekaterinburg]], [[Russia]] || Yekaterinburg Metro

|[[Yekaterinburg]], [[Russia]] || Yekaterinburg Metro

[[Category: Railroads]]

[[Category:Railroads]]

[[Category:Urban History]]

[[Category:Urban History]]