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

This hilltop ruin is of the hundreds of stone columns built in tribute to the first German chancellor.

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

Swedish skyscraper with a 90° twist.

The world's first purpose-built indoor shopping mall opened in Sweden in 1955.

According to legend, this boat-shaped henge is built over the grave of a mythic king.

Old Danish castle immortalized in Shakespeare's Hamlet.

A black cat protests the City Guild in Riga's Old Town.

The oldest housing complex in Riga is a mini timeline of architectural trends.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

The site of the first battle of World War II.

This Communist-era residential block is one of the longest residential building in Europe.

These massive moving sand dunes have swallowed an entire village and are still on the run.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

Home to three historic ships from the age of Vikings.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

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

Ancient stone graves shaped like ships provided a Viking-like burial to carry the dead to the afterlife.

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

The city that saw the birth of Sweden is now home to an impressive collection of work from its favorite artist.

The ruins of a monastery where Saint Bridget of Sweden had her revelations recorded.

This encrypted monolith protected a secret of Norse mythology by hiding in a church wall for over a millennium.

If there is one thing you don't want to be in Sweden during Christmas, it's a Yule Goat.