This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

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

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

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

Ancient burial grounds of the wealthy.

Every Tuesday, students let off steam by screaming into the night air.

Enigmatic bug-like sculptures mystify drivers along a Swedish highway.

A 200-year-old collection of medical paraphernalia in a historic house.

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

This Bangkok high-rise looks like a rudimentary LEGO elephant.

Bangkok's men with dangerous jobs come here in search of protective talismans.

Historic slum of Tartu.

There are no crying babies in this neck of the woods.

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

A memorial to the murdered Jews of Kaunas.

Many historians today consider Sverre as Norway's greatest king of all time. 

The world's biggest floating museum in Gothenburg, Sweden.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

A solar-powered primary school inspires hope and experimentation in a country ripe for energy innovation.

Singapore's landscaping project is home to 18 incredible Supertrees.

Thousands of rusting train cars have been slowly falling apart on the edge of Greece's second largest city.

The 10,000 Torii shrine.

Elaborate tile work in this railway station tells the story of Portugal.

A spherical "micro-nation" in the heart of Vienna.