Other prominent 20th-century structures include the Most Slovenského národného povstania (Bridge of the Slovak national uprising) across the Danube featuring a UFO-like tower restaurant, Slovak Radio's inverted-pyramid-shaped headquarters, and the uniquely designed Kamzík TV Tower with an observation deck and rotating restaurant. In the early 21st century, new edifices have transformed the traditional cityscape. At the beginning of the 21st century, a construction boom has spawned new public structures, such as the Most Apollo and a new building of the Slovak National Theatre, as well as private real-estate development.