The clues below have something in common that has nothing to do with their meanings and is revealed by the final clue. The final clue does not share the common characteristic of the others.

1. VINTAGE CAR
2. PILGRIMAGE TO MECCA
3. VOLKSWAGEN JETTA
4. ANCHORAGE, ALASKA
5. VIRGINIA GENTLEMAN
6. PERIOD PRECEDING THE RENAISSANCE

HINT:
It  has to do with hidden words.

Answer:

Each of the first five clues conceals the word AGE somewhere near the middle. The answer to Clue 6 is MIDDLE AGES. 

Credit: Barry C. Silk
RENAISSANCE