Strasbourg's Grande Île is a UNESCO World Heritage Site with cathedral and medieval churches. Notre-Dame cathedral features astronomical clock and 332-step platform access. Petite France offers well-preserved half-timbered houses and traditional restaurants. Vauban Barrage provides panoramic views of city and covered bridges
Bogotá DC is Colombia's capital with 15 million inhabitants. Located 2,640m above sea level in Colombian Andes region. Second most populous Spanish-speaking city worldwide. Divided into 20 boroughs with 6 geographical sections
Rush hour refers to peak traffic congestion during morning and evening commutes. Traffic congestion may last more than one hour. Term can apply to both vehicular and data network traffic. Peak periods vary by country, city, region and season
Danube is Europe's second-longest river, flowing 2,850 km from Black Forest to Black Sea. River passes through ten countries, including four capitals. Each language has its own name: Donau, Dunaj, Duna, Dunărea
Trails are unpaved or small paved roads not intended for motorized vehicles. First trails were created by animals, later adapted by humans. Post Track in England is one of the oldest known constructed trackways
Berlin has 5,334 km of roads, including 73 km of motorways. The city has 979 bridges across 197 km of innercity waterways. The A10 Berliner Ring forms a 196 km circular autobahn. The U-Bahn system spans 147 km with 173 stations. The S-Bahn system covers 331 km with 166 stations