Travelling couples can enjoy Chicago on about $175 to $400 per day.
For health reasons, engineers made the Chicago River flow backwards in 1900. It does so even today.
Campers and hostellers can have a great time in Chicago on $90 to $100 per day.
The average daytime temperature in Chicago is -3°C in January and 25°C in July.
A standard ticket for Chicago Transit Authority (CTA) costs $5.75 and is good for 24 hr.
In the mood for a pint? A half litre of beer in Chicago costs about $5.
It usually rains 122 days per year in Chicago.
About 6.9m people live in Chicago. It's the number 29 most populous city in the world.
The geographical area of Chicago is 5498 sq km, ranked number 3 largest in the world.
Thirsty? A 0.33 litre of bottled water in Chicago will cost you $1.20.
Passing clouds. Refreshingly cool.