Despite a history of destruction, this former citadel survives to document Afghanistan's oft overlooked history.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

Once the nail factory shut its doors, this Swedish factory town was abandoned, leaving behind a modern ghost town.

Around 9,000 ties call this museum home.

This Stockholm art museum integrates many of its pieces into the surrounding outdoor areas and natural landscape.

Unfortunately, you can no longer spend a night in this single-person treetop hotel.

For decades, these ships have been lying in rust awaiting a final decision on their fate.

This small town's local tradition is to create the world's tallest ice pillar.

Despite the groans of archaeologists, this astounding groups of Bronze Age petroglyphs have been painted red for tourists.

A replica of the beloved character's house, modeled after the author's own drawings.

The official meeting point for the oddly named governing assembly of ancient Sweden.

A botched 18th-century canal silenced one of Sweden's most magnificent waterfalls.

This fantastic cave remained unexplored until 1948 when three schoolboys discovered a hidden entrance.

Finally reunited, the three effigies now stand in a museum courtyard.

Walking through this narrow gorge will make you feel like you've fallen into a fairytale landscape.

This giant subway sculpture celebrates the fruit that inspired the theory of gravity.

Stockholm's narrowest alley is barely over two feet wide.

A lumberjack in Finnish Lapland did not want to cut down his Arctic pines, so he offered them up to be adopted by nature-lovers.

Rebuilt several decades ago, its striking murals prevent it from being reconsecrated as a church.

Sofia's legislative center is continuously reinventing itself.

This massive stone and steel monument remembers a century-old battle that cost thousands of lives and nearly destroyed the city.

"Unity, Creativity, Beauty."

These unique sculptures form a musical ensemble of recycled metal.

Curious carved stones and bird-like wings are a symbol of Serbian resilience and freedom on the site of a WWII massacre.