On a budget, Fenway Park Tour still earns its price.
~$25-30 tour; games vary widely
For anyone who loves baseball or Americana, standing atop the Green Monster and hearing the lore is a real thrill — it's a living shrine, not a museum. The catch: if you're indifferent to baseball it's just an old stadium, the hour-long tour is pricey, and a real game is a far better (if costlier) experience.