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.

Niagara Falls, New York, is home to one of the most powerful natural spectacles in North America. More than 3,000 tons of water pour over the edge every second, creating a thunderous roar and a rising mist that can be felt from blocks away. Visitors can stand just feet from the American Falls at Prospect Point or take the iconic Maid of the Mist boat tour, which has operated since 1846 and now features all-electric vessels.

Though it's San Diego County's smallest city in both size and population, Del Mar is one of its most widely known due to prominence of its Del Mar Race Track & Fairgrounds. The City of Del Mar with about 2 square miles of land for its 5,211 residents, the city gives up almost one quarter to the fairgrounds. But its beaches stretch from Del Mar Shores Beach Park in the north edge of Torrey Pine State Reserve and the La Jolla Underwater Park in the south.

Enchanting Palma is the capital of Mallorca, Spain’s island paradise in the Balearic Sea. This picturesque town boasts historic castles and cathedrals, glittering beaches, and some of the island’s best culinary delights. Don’t let this city’s small size fool you; Palma houses truly magnificent architectural gems that make this island getaway well worth exploring.

Phnom Penh, the capital of Cambodia, is a city where history, culture, and riverside life intersect. Situated at the confluence of the Mekong and Tonle Sap rivers, the city has a lively riverfront that serves as both a social gathering place and a hub for commerce.