This week's Friday Brain-Teaser from xrefer tests your knowledge of World Heritage Sites. Answers here.

1. Which former royal palace in France, ten miles from Paris, is a World Heritage Site where the peace treaty was signed at the end of World War I?
2. Which wall, built in about AD 122-130 as the principal northern frontier of Roman Britain, is a World Heritage Site?
3. The old city centre of Havana is a World Heritage Site - in which country?
4. Which play by Shakespeare was set at Elsinore in Denmark, the site of Kronborg Castle, a World Heritage Site?
5. Which World Heritage Site in China extends from the Yellow Sea to the Central Asian Desert?
6. Which ruined Inca city in Peru, discovered in 1911 by the explorer Hiram Bingham, is a World Heritage Site?
7. In which American city is the World Heritage Site of Independence Hall, where the Declaration of Independence was proclaimed in 1776?
8. Which city in northeast England has a cathedral and castle which are together a World Heritage Site?
9. Which islands in the Pacific off the coast of Ecuador are a World Heritage Site?
10. In which country is the World Heritage Site of Head-Smashed-In Bison Jump?