Both things ("sex and drugs") which are tolerated in Amsterdam are also common in Prague.
Prague is the capital city and largest city of the Czech Republic.
Red-light areas in Prague could be defined as areas with brothels or other sexual activities.
If you buy your entrance ticket on internet, it costs only 99 Koruna, at the door it is a little bit more.
You’ll find plenty of strip bars and late night bars, normally with special offers on drinks.
There are two well known Laufhaus brothels in Prague.