How many people have been to space from each country?

How many people have been to space from each country?
Which European systems have a metro/ subway system and when was the first line opened?
Want to take a swim in the ocean and just want to go to the nearest ocean? Well, this map will tell you which sea or ocean is closest to you and it might be a bit different than what you’d expected.
How large is the estimated homeless population of each country?
How much of each European country’s population lives in an apartment? And is there a correlation with population density?
We already looked at seafood consumption in Europe and Asia. This time, let’s take a look at Africa.
Where are the world’s 100 biggest companies located?
In which year was the current constitution of each European country ratified?
Nowhere are instant noodles consumed more than in Asia. But which Asian country loves instant noodles the most?
The Olympic games have come to an end. But how does each country’s performance look like when you compare the number of medals to its population size?
Which European cities have seen the biggest growth in the past 5 years?
Which parts of the US have the largest percentage of unoccupied homes?