This 2,000-year-old city, where the Teutonic Order founded one of its first commanderies in the 13th century, lies on the convergence of the Moselle and Rhine Rivers. Hop on a cable car, one of the city's most popular attractions, for stunning city-wide views, or cruise down the Rhine to spot some of Koblenz's magnificent fortresses and castles, including the Ehrenbreitstein Fortress and Schloss Stolzenfels.

This is a city one could get lost in for days, exploring the old Ming Dynasty walls and wandering through its superb museum. If time permits, you should also take a walk through Linggu Park, home of the Linggu Pagoda and other items of Buddhist interest. Even just a casual walk through the streets-replete with food vendors and baskets of live geese-will help convey the unique flavor of this city.

Puerto Plata, located on the Dominican Republic's northern coast, is the perfect tropical getaway for your next trip to the Caribbean! From Acapulco Beach to Playa Dorada, sandy beaches and warm turquoise waves are the highlight of this sunny destination.

Serbia is a country where centuries-old monasteries sit just a short drive from lively cities, and where the past is never far from daily life. In Belgrade, the capital, Kalemegdan Fortress offers panoramic views where the Danube meets the Sava River. This fortress has witnessed more than 100 battles and been rebuilt many times over two millennia. Within its walls are Roman ruins, an open-air military museum, and quiet park paths perfect for wandering between centuries of layered history.

Dominical is a small coastal town on Costa Rica’s southern Pacific shore, known for its strong connection to the ocean and surrounding rainforest.