Picturesque Schloss Ort, Lake Traunsee, Gmunden, Salzkammergut, Upper Austria, Austria, Europe

Picturesque Schloss Ort, Lake Traunsee, Gmunden, Salzkammergut, Upper Austria, Austria, Europe

Picturesque Schloss Ort illuminated at dusk, Lake Traunsee, Gmunden, Salzkammergut, Upper Austria, Austria, Europe

Picturesque Schloss Ort on Lake Traunsee, Gmunden, Salzkammergut, Upper Austria, Austria, Europe

Picturesque Schloss Ort, Lake Traunsee, Gmunden, Salzkammergut, Upper Austria, Austria, Europe

Riga Castle and the River Daugava illuminated at sunset, Riga, Latvia, Europe

Riga Castle and the River Daugava illuminated at sunset, Riga, Latvia, Europe

Picturesque Schloss Ort, Lake Traunsee, Gmunden, Salzkammergut, Upper Austria, Austria, Europe

Picturesque Schloss Ort, Lake Traunsee, Gmunden, Salzkammergut, Upper Austria, Austria, Europe

Royal Palace illuminated on a winters night, Castle Hill, Budapest, Hungary, Europe

Riga Castle and the River Daugava illuminated at sunset, Riga, Latvia, Europe

Threave Castle, fortress of the Douglas family dating from the 14th century, on an island of the Dee river, near Castle Douglas, Dumfries and Galloway, Scotland, United Kingdom, Europe

The 14th century Threave Castle, built by Archibald the Grimm, later stronghold of the Black Douglas, near Castle Douglas, Dumfries and Galloway, Scotland, United Kingdom, Europe

The 14th century Threave Castle, built by Archibald the Grimm, later stronghold of the Black Douglas, near Castle Douglas, Dumfries and Galloway, Scotland, United Kingdom, Europe

Threave Castle, fortress of the Douglas family dating from the 14th century, on an island of the Dee river, near Castle Douglas, Dumfries & Galloway, Scotland, United Kingdom, Europe