"Urban Pauses" is the theme of the four-day event and artists looked at green spaces between buildings and on the outskirts of Estonia's second-biggest city.

Artists explored the impact and meaning of urban pauses in the city space, the organizers said.

"These are transitional and untamed places, which at first glance seem to lack function, but nevertheless are valuable as they are," a statement said.

The festival runs August 16-19 and features nine installations by artists from Estonia, Poland, France, Germany, Latvia, Lithuania, and Italy.

The organizers said the event encourages people to use public spaces and contemplate the different ways towns and cities can be made cosier and more diverse,

The name UIT derives from the Estonian word "uitama", meaning to wander.

Many of the events have free admission and take place around Tartu.

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