Ljubljana, Slovenia

Ljubljana boasts Europe's most pedestrian-friendly historic core, car-free since 2007 with 90% of the old town accessible only on foot or by bike. Designed largely by Jože Plečnik, it earned the European Green Capital award in 2016, and its 300,000 residents enjoy a hilltop castle, the iconic Dragon Bridge, and a thriving café culture along the Ljubljanica River.