Tartu Old Observatory, which used to be one of the world's most important centres of astronomy, is a pearl among the Estonian research facilities. In 2005, its Struve Geodetic Arc was added to the UNESCO World Heritage list.
Here, you...
Advertising is everything. Ask your friends to join you at a training, conference or party on a raft in the middle of a bog somewhere, and they'll probably hesitate. But ask them to join you at a beautiful venue with sauna, WC and picnic ground, accommo...