Madagascar is the only country in the world where lemurs are found in the wild. The island nation in the Indian Ocean off the coast of Africa has over 35 different types of lemurs. I visited Madagascar on the Silversea Silver Wind and was lucky enough to see dozens of the furry creatures on the island of Nosy Komba.
Madagascar Lemur (c) Linda Garrison

More Photos of the Lemurs of Madagascar

Cobh (pronounced "Cove") is a picturesque harbor town just a few miles from Cork, Ireland. Cruise ships dock in downtown Cobh and run shore excursions to Cork, the Blarney Castle, Waterford, Killarney, or the Irish countryside.

However, Cobh is a nice place to spend the day if you want to just relax and just enjoy strolling around this pretty little village on Cork Harbor. It's also filled with maritime history, having been the last port of call for the Titanic in 1912 and near the site where the Lusitania was sunk during World War I.

Cobh (c) Linda Garrison

Viminacium is near the Serbian town of Kostolac, and river cruise ships sailing the eastern Danube stopover for a few hours so that passengers can tour the large Roman archaeological site. It's very interesting to look out over today's crop fields and imagine a bustling town and Roman fort from almost 2000 years ago.

The three areas at Viminacium open thus far include the northern Roman military gate, the thermal baths, and the imperial mausoleum. Guides, who may be either working archaeologists or professional guides, provide explanations, drawings, and models to help visitors understand what they are seeing on the tour.

Viminacium Imperial Mausoleum Graves (c) Linda Garrison

A great way to get a bird's-eye view of an old city is to walk on top of the ancient wall surrounding the town. Those who have cruised Europe can fondly remember walking the wall in Dubrovnik, Lucca, or one of the towns along the Danube River. And, of course there's that famous wall on the other side of the earth--the Great Wall of China. Yangtze River cruise tours always include a walk along this amazing structure.

The About.com Guide to Adventure Travel has compiled a list of her favorite "wall walks". Can you think of any others?

Dubrovnik (c) Linda Garrison