Gamboa, Panama, was originally built to house employees of the Panama canal. The small town's main attractions are its proximity to significant tracts of relatively undisturbed rainforest, and Pipeline Road, considered one of the best bird watching sites in Central America.

Cairns is the majestic entrance to Australia's Great Barrier Reef. This warm, tropical destination is located in Far North Queensland. Must-see attractions in Cairns include the Tjapukai Aboriginal Cultural Park, which educates tourists about indigenous peoples, and restaurant and bar-dotted Cairns Esplanade, which has a lagoon for swimming.

Eminently livable and a pleasure to visit, Zurich is Switzerland's largest and most affluent city. This Central European metropolis is an engine of finance and banking, and has much to offer to visitors. There are numerous art museums, fine chocolate stores, and boundless luxury shopping opportunities.

Originating as a tiny fishing village in 1038, modern Kehl has become an important link between Germany and France. Rhine River cruises most often use Kehl as their gateway to the much larger and better-known Strasbourg. The savvy traveler, though, might choose to skip the jaunt across the river and enjoy many similar sights, shopping and cuisine as those offered in the teeming French city.

Fitzroy Island sits off the coast from Cairns in Queensland, Australia, rising from the Coral Sea with rainforest and beaches that draw visitors year-round. A short, scenic ferry ride from Cairns’ marlin marina brings visitors to this tropical island, part of the Fitzroy Island National Park where rainforest meets reef.