When you think of a European luxury guided tour, unusual architecture won’t be at the top of your list – it’s likely that famous landmarks such as the Eiffel Tower in Paris, Buckingham Palace in London and St. Peter’s Basilica in Rome spring to mind first. While these are all worthy destinations in their own right, over-tourism can be an issue, so we’re choosing to highlight places where your tourist dollar can provide support. This is part of our commitment to more sustainable travel options that travelers are seeking.