Stockholm, one of the most beautiful capitals in the world, is built on 14 islands connected by 57 bridges. The beautiful buildings, the greenery, the fresh air and the proximity to the water are distinctive traits of this city. Ekoparken, the first National City Park in the world, is a green space that breathes for the city, and a constant presence in the crush of the city. Visit Stockholm City Hall. Climb the City Hall tower for a fantastic view of Stockholm. Don’t miss Gamla Stan, Stockholm’s oldest attraction and one of the best preserved medieval city centers in the world. Walk through small winding streets lined with stores full of handicrafts, antiques, art galleries and cafes. The Royal Palace and Stockholm Cathedral are also located in Gamla Stan.