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Historians debate why Caerphilly Castle’s southeast tower leans. Some say the tower was damaged during the English Civil War in the 17th century. Others say the lean is actually the result of natural subsistence and weathering.
Whatever the causes of the lean, the castle's leaning Southeast Tower is a spectacular sight. Perhaps less famous than its Italian cousin, the Leaning Tower of Pisa, which leans at 4 degrees, the southeast tower leans at a much steeper angle of about 10 degrees.
Know Before You Go
The Tower is visible from part of Caerphilly town and on the publicly accessible walking path around the castle’s moats; an admission ticket is required to enter the castle and to see the tower up close.
The easiest way to visit the tower is to take the train to Caerphilly (or Aber) on the Rhymney Valley line, which runs from Cardiff Central (and Cardiff Queen Street), and then walk the short distance to the castle.
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Published
October 15, 2025
