The view from the castle, a central part of Ljubljana since the days of hunter-gatherer, Romans, Celts and eventually tribes from Germany and Austria, and the Slavs, shows the city's development along the river. Modernized for walking but retaining its history the city's famous architects created a charming atmosphere along the tree-lined banks of the river. Slovenia gained its independence from the former Yugoslavia in 1991 and joined the EU in 2004.