Seattle city centre is well serviced by public transport, with an excellent bus system, historic streetcars along the waterfront, and a high-speed elevated Monorail that links downtown to the Seattle Center and offers views over the harbour and beyond. The bus system is the most extensive and runs throughout the night, but less frequently after 8pm. Fares on buses and trams are slightly more expensive during peak hours. Taxis can be hailed from taxi ranks or ordered by telephone. Parking in Seattle is expensive and limited, but traffic isn't too bad outside of rush hour and the city is fairly easy to navigate. Renting a car for excursions outside the city is a good option.