Now capital of Bosnia and Herzegovina, Sarajevo's history goes back to Roman times. Senior history buffs may associate it with the 1914 assassination there that within four years resulted in deaths of millions on World War I battlefields of Europe. Sarajevo today is a great European destination for many reasons.

Transportation: Sarajevo International Airport (SJJ) is served by international carriers. For example, roundtrip economy class fares on Turkish Airlines from the U.S., with service through Istanbul, are about $2,000.

Guest Senior Venturer YLH, Chicago IL: The one thought I always have when visiting that one crazy block of Lombard Street is: the people who live in these houses must be really tired of seeing hordes of climbing tourists. Worse, lines of creeping sightseeing cars jamming their street every hour of every day and night.

Actually the city's Lombard Street is not confined to this one block, but the famous spot is a one-way meander between Hyde and Leavenworth Streets. It features eight very sharp zigzags, and boasts "the crookedest street in the world". Of course, any Washington DC street where politicians roam is certainly much more crooked in theory, if not actuality.

Museums in America, France, England, Russia and other world destinations attract senior travelers with their great collections of art. America also boasts many fascinating military museums, including those that once were battle-tested warships of the US Navy.

USA Today recently conducted a poll to solicit choices of the very best from among 188 historic military relics of bygone history. The result is the battleship USS Iowa taking second place, and leading the list is the aircraft carrier USS Midway. Both are now permanently moored in Southern California waters.

The USS Midway (CV-41) is at Navy Pier in San Diego. Commissioned in 1945, the enormous ship served in aviation combat missions in the Korean War, Vietnam and other actions until 1992. Visitor passes $20. midway.org

The USS Iowa (BB-61) has been docked at the Port of Los Angeles in San Pedro since 2010. Commissioned in 1943, the battleship was involved in combat operations during World War 2, Korean War, Vietnam and other missions. Visitor passes $20. pacificbattleship.com

Guest Senior Travel Writer AAL, Omaha NE: Just about everywhere you look in all directions is a beautiful view. Tony Bennett sings about it:

I left my heart in San Francisco.
High on a hill, it calls to me.
To be where little cable cars
Climb halfway to the stars!

If I had to choose just a few spots in the beautiful city, it would be difficult, but here’s my attempt.