1. Bell Tower of Glendalough   Hint First letter clue   2. Buckingham Palace   First letter clue   3. Atomium   First letter clue   4. The Cathedral of Santiago de Compostela   First letter clue   5. The Nyhavn of Copenhagen   First letter clue   6. Doge's Palace (Palazzo Ducale)   First letter clue   7. The Palace of Vienna   First letter clue