Eastern State Penitentiary, Philadelphia, Pennsylvania

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Built by Quakers in 1829, Eastern State Penitentiary, or ESP, was then the most expensive prison in the world. It’s also considered to have been the first true ‘penitentiary’, focused on inspiring its inmates to feel penitence or regret. It’s easy to see how these surroundings might: the Gothic-style structure, guarded by menacing gargoyles, has crumbled around its cold edges, while the tiny cells hint at the achingly lonely conditions prisoners were kept under.

America's abandoned prisons you can visit (msn.com)

Eastern State Penitentiary, Philadelphia, Pennsylvania Built by Quakers in 1829, Eastern State Penitentiary, or ESP, was then the most expensive prison in the world. It’s also considered to have been the first true ‘penitentiary’, focused on inspiring its inmates to feel penitence or regret. It’s easy to see how these surroundings might: the Gothic-style structure, guarded by menacing gargoyles, has crumbled around its cold edges, while the tiny cells hint at the achingly lonely conditions prisoners were kept under.