Ontario is Canada's most densely populated province, harboring such cosmopolitan cities as Toronto and Ottawa. Millions of tourists come into Ontario every year, and industry and farming are the chief industries along the Great Lakes.

Known as the "Garden Island," Kauai is Hawaii's oldest island and a tropical paradise. Covered with verdant rainforests, glittering waterfalls, and immense cliffs, Kauai will astound you at every turn. This island is the perfect destination for outdoor adventures, with activities from kayaking, to ziplining, to snorkeling. Better yet, marvel at the island's natural beauty, from the scenic cliffsides of Nāpali Coast State Wilderness Park to the resort beaches of Poipu.

Muara is a small coastal town in Brunei, positioned where the Brunei River meets the South China Sea.

Barranquilla sits near the mouth of the Magdalena River on Columbia's Caribbean side. It is a major seaport and a center of commerce, but everyone breaks loose for four days in February for one of the liveliest carnivals outside of Rio.

Český Krumlov, a picturesque city in the Czech Republic, is a treasure trove of medieval charm and architectural splendor. Nestled in the South Bohemian Region, this UNESCO World Heritage Site is renowned for its stunning Český Krumlov Castle, which towers over the city and offers panoramic views of the winding Vltava River and the old town's red-tiled rooftops.