1) The word "flower" contains two vowels: O and E.

2) The ancient city of Pompeii was preserved under layers of volcanic ash after the eruption of Mount Vesuvius in 79 AD, providing valuable insights into Roman life.

3) The Bank of England, established in 1694, is the central bank of the United Kingdom and one of the oldest central banks in the world.

4) The word "table" contains two vowels: A and E.