Tunnels under Federal Hill
The existence of a network of tunnels beneath Federal Hill is a longheld Baltimore legend. It's true that underground shafts and caves date back hundreds of years -- though many have been sealed off or filled in.
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The Inner Harbor has a persistent — and somewhat deserved — reputation for being foul. But still, experts say there’s life and surprises in the water. Here's a look at what we've found there, from sunken cars to aquatic life and everything in between.