Solve these clues to fill the grid.
- The citadel in ancient Greek towns
- 3 Across
- North American republic containing 50 ___ - 48 conterminous ___ in North America plus Alaska
- 4 Across
- A wrought iron ___ 300 meters high that was constructed in Paris in 1889
- 5 Across
- A monument commemorating a nation's dead heroes
- 9 Across
- Clock in the clock tower of the Houses of Parliament, London
- 10 Across
- A large amphitheater in Rome whose construction was begun by Vespasian about AD 75 or 80
- 1 Down
- Inca fortress city in the Andes in Peru discovered in 1911
- 2 Down
- Beautiful mausoleum at Agra built by the Mogul emperor Shah Jahan in memory of his favorite wife
- 6 Down
- French capital with the Eiffel Tower
- 7 Down
- Country in the UK whose capital is London
- 8 Down