Tucked away amidst its rather heavyweight neighbors, tiny Luxembourg is like the charming introvert at Europe's grand dinner party. It's a beautiful goldilock of a city, neither too big to lose its old-world charm nor too small to run out of intriguing corners. Its robust banking scene is like a hidden superpower while its army, all of 800 soldiers, feels more like a delightful home-guard welcoming committee. For sure, Luxembourg is the quirky wallflower of Europe making a grand impression without even trying!