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.

Tenerife is the largest isle of the Canary Islands archipelago. Famous for its black and yellow sand beaches as well as Mt. Teide, the dormant volcano that looms over the island.

Dubai is a grandiose, extraordinarily modern metropolis in the United Arab Emirates. Visitors will marvel at the dramatic skyline, the musical Dubai Fountain and the manmade archipelago right offshore that features a major resort.

The Darvaza Gas Crater, famously nicknamed the “Door to Hell,” is one of Turkmenistan’s most extraordinary landmarks. Located deep in the Karakum Desert, this fiery pit has been burning continuously since the early 1970s, when Soviet engineers reportedly set fire to a collapsed natural gas field to prevent the spread of methane.

Argentina's second largest city, founded 400 years ago by Conquistadores, Cordoba is built at the edge of the Pampas and in thefoothills of the Andes Mountains. It is a university town that maintains the charm of Colonial days and Spanish traditions.