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Top 20 Spy Cities

The secrets are hidden behind fortified walls in cities across the world, inside towering, windowless skyscrapers and fortress-like concrete structures that were built to withstand earthquakes and even nuclear attack.
Thousands of people pass by the buildings each day and rarely give them a second glance, because their function is not publicly known.
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438 users · 4,900 views
 
made by Chovgan
avg. score: 8 of 20 (40%)
required scores: 1, 3, 7, 9, 12 
type to search

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Amsterdam, Netherlands
Amsterdam, Netherlands
1
Baku, Azerbaijan
Baku, Azerbaijan
2
Berlin, Germany
Berlin, Germany
3
Brussels, Belgium
Brussels, Belgium
4
Budapest, Hungary
Budapest, Hungary
5
Chicago, USA
Chicago, USA
6
Geneva, Switzerland
Geneva, Switzerland
7
Istanbul, Turkey
Istanbul, Turkey
8
Lisbon (Portugal)
Lisbon (Portugal)
9
London, United Kingdom
London, United Kingdom
10
Mexico City, Mexico
Mexico City, Mexico
11
Moscow, Russia
Moscow, Russia
12
New York, USA
New York, USA
13
Paris, France
Paris, France
14
Prague, Czech Republic
Prague, Czech Republic
15
Riga, Latvia
Riga, Latvia
16
Tallinn, Estonia
Tallinn, Estonia
17
Venice, Italy
Venice, Italy
18
Vienna, Austria
Vienna, Austria
19
Washington, USA
Washington, USA
20
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