Formidable fortresses - 20 imposing castles

Take a look at these formidable fortresses from around the world - maybe not the most beautiful castles but they cast an imposing and impressive shadow on the landscape.

The 10 Most Beautiful German Castles

Firth of Forth Archives - My Plaid Heart

The most beautiful European castles

This country has the most castles in Europe

Conwy Castle: A Spectacular Fortress that Stands the Test of Time

Unyielding Majesty: England's Top 10 Impregnable Castles and

Trim Castle: Reliving Ireland's Medieval Might

Discover the formidable Haut-Kœnigsbourg Castle - French Moments

42 Most Beautiful Castles in the World - Global Viewpoint