Top 20 Countries with Longest Road Tunnels

Which 20 countries contain the longest road tunnels? Three of the tunnels (shaded) are international, so you'll need to give two answers for each of those.
The country marked in red does not appear in the Countries of the World quiz, but does appear in the Countries 197 to 204 quiz
Quiz by TenThousand
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Last updated: November 3, 2015
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First submittedDecember 19, 2014
Times taken150
Average score60.0%
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km
Country
miles
24.51
Norway
15.22
18.20
Japan
11.30
18.04
China
11.20
16.92
Switzerland
10.51
13.97
Austria
8.68
12.94
Taiwan
8.04
12.90
France
8.01
Italy
9.12
Iceland
5.66
8.61
Spain
5.35
France
km
Country
miles
8.50
Singapore
5.28
7.92
Germany
4.92
7.86
Slovenia
4.88
Austria
6.70
Australia
4.16
6.60
Netherlands
4.10
6.30
Faroe Islands
3.91
6.28
Vietnam
3.90
5.78
Croatia
3.59
5.65
Albania
3.51
5.60
United States
3.48
+1
Level 70
Dec 19, 2014
So which ones are the international tunnels?
+1
Level 76
Dec 19, 2014
The three where you need to give two answers for the one road length.
+1
Level 47
Dec 20, 2014
You're missing Portugal. Túnel do Marão is 5.7 km long.
+1
Level 76
Dec 20, 2014
Túnel do Marão is still under construction.
+1
Level 73
Nov 3, 2015
This quiz needs to be updated, Yamate Tunnel is 18.2km long since earlier this year and now, Japan should be 2nd.
+1
Level 76
Nov 3, 2015
Updated, thanks.