This cultural capital and university city holds more than 2,000 years of history and is the cultural hub of Germany.

This small yet charming city in Alaska's panhandle is a throwback to the gold rush era. Skagway is a well-preserved part of Klondike Gold Rush National Historical Park.

Roma. The Eternal City. Whatever you call Rome, it stands alone as Italy's most visited destination. The third most populated city in the European Union, Rome boasts ancient sites, yet has a modern flair — an exhilarating mix of the Old World and the new.

Say "Aloha!" to the big city on Oahu's South Shore: Honolulu. This sunny capital city is the main portal to the larger Hawaiian archipelago, and the perfect base for exploring Oahu.

This charming town is the perfect place to immerse yourself in Scottish Gaelic culture, music, and history, making it a popular port city for visitors and a great starting point for exploring the rest of the archipelago.