China's Great Wall

0

/

1989

0

/

NaN

9

/

2021

0

/

2007

8

/

2018

6

/

2011

4.7

/

2015

4.2

/

2016

5.9

/

2014

7

/

2019

7.906

/

1998

6.338

/

2005

4.583

/

1987

5.495

/

2008

5.749

/

2003

6

/

2016

6

/

1962

8.1

/

2013

5.9

/

2003

5

/

1910