For 28 years the Berlin Wall divided East and West Germany.

And two decades since the Iron Curtain crumbled, tourists come to Berlin wanting to find traces of the city's division.

Double lines of cobble stones mark the route the Wall once took.

Segments are dotted across the city — like here at the open-air East Side gallery.

They're permanent reminders of the darker moments of Berlin's past.

But since the 9th of November 1989, parts of the Wall have found their way right around the world.

To Washington D.C. in the United States, and the Australian capital Canberra.

And here at London's Imperial War Museum, the Wall is a stark reminder of modern history.

[Terry Lamonte, Imperial War Museum Visitor]:
"I think it's a good thing to make people remember the Berlin Wall, to make people remember how governments can separate people, although they speak the same language and have basically the same culture and still is a physical separation. But it's come a long way since then, so I think that it's good."

These segments made their way to Seoul, in South Korea.

With the Korean peninsula still divided between North and South, the Wall gives some Seoul residents pause for thought.

[Kim Tae-Sung, Seoul Resident]:
"When this wall piece was put up in South Korea, we hoped unification would come soon, but for now, the wall just stands with silence. I think this wall can only have meaning if the two Koreas are finally united. I hope the spirit of the Berlin Wall will make the unification come true."

1000 dominoes will be knocked down in front of Berlin's landmark Brandenburg Gate on the 9th of November, symbolising the fall of the Wall.

While Germany celebrates twenty years of unity, many say it's now time to look at other parts of the world, where divisions still stand and walls are still being built.