Pontcysyllte is magical, not least thanks to its setting in delightful countryside. Barton Swing Aqueduct is in an unattractive patch of urban Manchester, but

Pontcysyllte is magical, not least thanks to its setting in delightful countryside. Barton Swing Aqueduct is in an unattractive patch of urban Manchester, but impressive in engineering terms. It’s a canal-over-canal bridge which can swing aside to let big ships through: https://en.m.wikipedia.org/wiki/Barton_Swing_Aqueduct https://en.m.wikipedia.org/wiki/Barton_Swing_Aqueduct