Multiple choice general knowledge

I'm staying in a beautiful city situated on the banks of the Vltava River. Science buffs will know that the modern contact lens was invented in this country. Where am I?

  1. Slovakia

  2. Croatia

  3. Czech Republic

  4. Bosnia and Herzegovina

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Vltava River flows through Prague, the capital of Czech Republic. Czech scientist Otto Wichterle invented the modern soft contact lens in the 1950s-60s.