Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.

A catapult rock from Gotland’s 13th-century civil war is still lodged in Scandinavia's best-preserved medieval city wall.

Known locally as the Jungfrutornet, this Medieval tower hides a dark legend.

This trio of stone spires claims to be the only preserved medieval execution site in Europe.

Legend has it that this large rock maze in Sweden was created as punishment by the daughter of a wealthy captain.

Special benches that play Chopin's music are scattered throughout his native city.

A statue honors the children who fought Nazis in Poland.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Museum dedicated to "the man who moved the Earth."

Boats must transform into railroad cars to navigate this Polish canal.

This 13th century Gothic brick castle is the largest in the world by surface area.

Communism's topsy-turvy effect on Poland has been brought to life in this wacky tourist trap.

This imposing 20th-century castle was abandoned before it was ever completed.

The coffin-shaped church was once home to monks who slept in coffins.

These rare statues are one of the few remaining material witnesses to Old Prussian culture.

This antique thermometer honors the creator of the first universal temperature scale.

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

A mysterious emblem tucked in an small alleyway is actually the coat of arms of a heroic medieval family.

A huge wooden clock that is so beautiful its creator was forcibly blinded.

Modern art commemorates one of the first military actions of World War II.

The site of the first battle of World War II.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.