In which country would you find the Brandenburg Gate?

In which country would you find the temples of Bagan? In which country would you find the Forbidden City? In which country would you find the Terracotta Army? In which country would you find the Leaning Tower of Pisa? In which country would you find the Charles Bridge? In which country would you find the Cliffs of Moher? In which country would you find the Giant's Causeway? In which country would you find the Blue Lagoon geothermal spa?