Capital City Superlatives #1

Answer the following questions with the capital city. Remember: the superlative corresponds to the CAPITAL, not the country. For population, it refers to city proper!
Quiz by benzeller
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Last updated: March 7, 2016
First submittedMarch 7, 2016
Times taken88
Average score33.3%
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Superlative
Hint
Capital
Biggest (by area)
2700 mi²
Tokyo
Smallest (by area)
.44 mi²
Vatican City
Most populous (city proper)
11,920,000
Moscow
Least populous (city proper)
391
Ngerulmud
Oldest
10,000 - 8,000 BCE
Damascus
Newest
2005 CE
Naypyidaw
Coldest
-1.3°C or 29.7°F
Ulaanbaatar
Hottest
44°C or 104°F
Kuwait City
Superlative
Hint
Capital
Highest Population Density
111,002 people/mi²
Manila
Most Dangerous
119.87 murders per 100k
Caracas
Most Safe (not counting extremely small rates)
.89 murders per 100k
Tokyo
Longest City Name (formal)
167 letters
Bangkok
Most Parks
51%
Vienna
Highest in elevation
11,913 feet above sea level
La Paz
Lowest in elevation
92 feet below sea level
Baku
+1
Level 72
Mar 7, 2016
Depending on the source, the most populous capital city could also easily be Tokyo, Mexico City, Seoul, Jakarta etc. didn't even think of Beijing.
+1
Level 63
Mar 7, 2016
This refers to city proper (I'll make a note about that), but I believe the answer isn't Beijing nor is it those listed. According to worldlibrary.org, the largest by city proper is Moscow. I'll fix that, along with some other problems.
+1
Level 63
Mar 7, 2016
For the highest in elevation, to avoid arguments about how La Paz is only the de facto capital of Bolivia, I added the next highest capital as a possible answer, as well as Sucre, because why not.