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...
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...