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A bootleg coal mine
It's a long way to the top if there's a collapse
Vintage locomotive "Henry Clay" formerly used to haul coal out
The largest coal vein mined from this facility - Mammoth Vein is several miles long
Mine lighting is minimalist at best
Entrance to Indian Echo Caverns
Me at the entrance to IEC
Natural features inside IEC
Natural features inside IEC
Natural features inside IEC
Me inside Independence Hall
Benjamin Franklin's grave, downtown Philadelphia
Independence Hall
Liberty Bell
Philadelphia's infamous "LOVE" sign
New skyscrapers are restricted to certain areas of Philadelphia
City Hall - skyscrapers must be behind the statue of William Penn on top of it
Pigeons
Enormous earthworks project permitted Interstate to be built
Enormous earthworks project permitted Interstate to be built