evidence: When the former Yugoslavia splintered into seven smaller republics, Croatia got most of the tourists. Its almost 4,000 of miles of Adriatic Sea coast are dotted with secret beaches, tiny islands, and quaint Medieval towns. Macedonia and Kosovo, by contrast, were left completely high and dry, with no coastline at all. Bosnia and Herzegovina looks landlocked as well—but take a closer look at the map. Bosnia actually has a lovely Adriatic coast, but you could walk across it in a single afternoon. This is the Neum corridor, and it cuts Croatia neatly in two. [...] In the Great Turkish War of the late 17th century, the city-state of Dubrovnik allied itself with the Ottoman Empire, but that didn't end well. The 1699 Treaty of Karlowitz gave a lot of the Ottoman lands in the Balkans to the victors: the Habsburg Empire and Venice. Dubrovnik was so afraid of a Venetian attack that it gave away a tiny tract of land on its northern tip to the Ottoman Empire, to give itself a buffer against Venice. That fateful decision made Neum a permanent part of the region's Ottoman-ruled provinces: Bosnia and Herzegovina. [...] When Yugoslavia broke up in 1991, the newly independent Croatia was now split in two. Twelve miles of Bosnia-Herzegovinian coastline separate the Dubrovnik region from the rest of Croatia to the north. The Neum corridor gives Bosnia and Herzegovina a shorter coastline than any other nation on earth aside from Monaco. Even tiny Pacific islands like Nauru and Tuvalu have more beachfront property than Bosnia.