Dubrovnik, in the extreme south of Croatia, is known as the Pearl of the Adriatic. A rich and powerful city state until 1806, the proud city once known as Ragusa has a population of over 120,000. Structural damage suffered during the siege of 1991 and 1992, at the hands of the Yugoslav People's Army, has been repaired and visitors once again flock to this tranquil city, nestled between the Adriatic and Dinaric Alps. A wealth of sites lies within the walls of the pedestrian-only Old Town.

There are 2,000 years of history in Cologne, and visitors here will find everything from Roman towers to Gothic churches to fine examples of modern architecture. Cologne has a variety of museums, too—check out the Museum of Applied Art, the Museum Ludwig and, if you have a sweet tooth, the Chocolate Museum. Be forewarned, though—the gift shop at the latter will utterly ruin your diet.

Dubai is a destination that mixes modern culture with history, adventure with world-class shopping and entertainment. Catch a show at the Dubai Opera, see downtown from atop the Burj Khalifa and spend an afternoon along Dubai Creek exploring the gold, textile and spice souks. If you’re looking for thrills, you can float above the desert dunes in a hot air balloon, climb aboard a high-speed ride at IMG Worlds of Adventure or skydive over the Palm Jumeirah.

Pretoria is a vision of purple, thanks to its plethora of blossoming trees that gave the South African metropolis its nickname: Jacaranda City. Give in to the animal magnetism of the National Zoological Gardens of South Africa, then get up close and personal with the big, bad kitties of the Cheetah Research and Breeding Centre. The buildings of Pretoria reflect diverse architectural styles and influences, creating a unique urban landscape.

The Indian and colonial influences in this South African beach city can’t be missed, and the blend of cultures and architecture makes Durban unique in South Africa. Durban’s Golden Mile is a destination for surfers, families and fisherman, due to its blend of natural beauty and modern resort. Major-city attractions abound, making this a good destination for families and couples alike.