The two abandoned overpasses are among the largest bridges in Poland.

This striking structure is the Socialist-modernist centerpiece of a former Soviet spa resort.

Open-air museum with a large collection of Soviet-era statues.

Once known throughout Europe, this tiny and unusually progressive 18th century micro-nation within Lithuania now lies in ruins.

A curious art park at the geographic center of Europe is home to 3,000 television sets and other wonders.

Plaques celebrating Lithuanian writers freckle a wall of this picture-perfect path.

A 300-kilogram egg sculpture that embodied a neighborhood revival.

A 15-foot-tall statue of the head of the Sopranos family greets passengers at a train station in southeastern Lithuania.

Longest fortress system anywhere in Europe.

Oriental bazaar in the heart of Sarajevo.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

Bridge that died in war and was resurected.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

A war-torn Olympic relic is being overtaken by graffiti and nature.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.