The Irish Republic's second largest city is a surprisingly appealing place - you'll find time passes effortlessly during the day, and by night the pub scene is lively. The town center is uniquely situated on an island between two channels of the Lee River.

Tbilisi, the capital of Georgia, is a city where tradition and modern life blend seamlessly. Set along the banks of the Kura River and surrounded by hills, its layout reflects centuries of change and cultural exchange. The Old Town, with its cobbled lanes and wooden balconies, is a living museum of architecture, showcasing influences from Persian, Ottoman, and Russian eras. Above it all, the Narikala Fortress stands watch, offering sweeping views of the city below.

Cayenne, the lively capital of French Guiana, sits where the Cayenne River meets the Atlantic Ocean, blending South American rhythms with French-Caribbean influence. While it's officially part of France, Cayenne feels worlds away from Paris, with colorful markets, colonial architecture, and a language mix that includes French, Creole, Portuguese, and Indigenous dialects.

Niagara Falls, Canada, is a destination that captures the imagination with its breathtaking natural beauty and vibrant atmosphere. Straddling the border between Canada and the United States, Niagara Falls is a world-renowned wonder that consists of three powerful waterfalls: the Horseshoe Falls, the American Falls, and the Bridal Veil Falls. The Canadian side is famous for offering the most spectacular views of these cascading waters.

The capital of Crete, Heraklion is a Greek port city and a popular stop on Mediterranean and Greek cruises. The city is an historical marvel, replete with archaeological wonders and remnants of the region's past. Highlights include the Heraklion Archaeological Museum, the Rocca a Mare Fortress, the Venetian Loggia, and just past the city limits, the Palace of Knossos.