Trebinje, the southernmost city in Bosnia and Herzegovina, sits just a short drive from the Adriatic coast but offers a completely different rhythm. Framed by hills and set along the Trebišnjica River, the city has a history stretching back to Roman times. The river that winds through the city is one of the longest sinking rivers in the world and often disappears underground and resurfaces in various places.

Two thousand years have left their mark in Bonn, tracing its development from a Roman camp into the settlement known as "Villa Basilica," and on through the Baroque era's Electoral Palace, which today houses the University.

Nestled in the heart of Greece's Thessaly region, Kalabaka is a charming town renowned for its striking natural and historical attractions. Most famous for its proximity to the Meteora rock formation, Kalabaka offers a unique blend of geological marvel and spiritual history.

More than 5.5 million people visit Durham each year to enjoy a wealth of things to see and do including historical landmarks and sites, art centers and museums, nationally-recognized festivals and sports events.

Volcanoes National Park, in northwestern Rwanda, is a place where dramatic volcanic landscapes meet extraordinary wildlife encounters. Stretching across the Virunga Mountains, the park is dominated by five towering volcanoes whose slopes are cloaked in rainforest and bamboo.