The Tallinn TV Tower is a free-standing structure with an observation deck that was built to provide better communication services for the regatta event at the 1980 Moscow Summer Olympics. A special activity has opened on the 22nd floor of this tower allowing visitors to walk along the roof edge of the TV tower ! Up to 4 people can simultaneously walk on the edge of the floor at a height of 175 meters. Visitors walking on the ledge are tied with seat belts. One track can take up to 30 minutes and participants are photographed which they can request to be emailed to them free of charge.