WThe following is a list of sinkholes, blue holes, dolines, crown holes cenotes, and pit caves. A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. Some are caused by karst processes—for example, the chemical dissolution of carbonate rocks or suffosion processes. Sinkholes vary in size from 1 to 600 m both in diameter and depth, and vary in form from soil-lined bowls to bedrock-edged chasms. Sinkholes may form gradually or suddenly, and are found worldwide.
WThe 2010 Guatemala City sinkhole was a disaster in which an area approximately 65 ft (20 m) across and 300 ft (90 m) deep collapsed in Guatemala City's Zona 2, swallowing a three-story factory. The sinkhole occurred for a combination of reasons, including Tropical Storm Agatha, the Pacaya Volcano eruption, and leakage from sewer pipes.
WOttawa Road 174, formerly referred to as Ottawa-Carleton Regional Road 174 and commonly referred to as Highway 174, is a city-maintained road in the City of Ottawa which serves the eastern suburbs of Orléans and Cumberland.
WThe National Corvette Museum showcases the Chevrolet Corvette, an American sports car that has been in production since 1953. It is located in Bowling Green, Kentucky, off Interstate 65's Exit 28. It was constructed in 1994, and opened to the public in September of that year.
WThe O-Train is a light rail transit system in Ottawa, Ontario, Canada operated by OC Transpo. It currently has one line in operation, the electrically-operated Confederation Line, with 13 stations. 20.5 km (12.7 mi). Stage 2 of the system, currently under construction, will re-open the Trillium Line along with two new lines, bringing the system's length to 64.5 km (40.1 mi), four lines and 41 stations.
WFlorence is a city in central Italy and the capital city of the Tuscany region. It is the most populated city in Tuscany, with 383,084 inhabitants in 2013, and over 1,520,000 in its metropolitan area.
WRideau Street is a major street in downtown Ottawa, Ontario, Canada and one of Ottawa's oldest and most famous streets running from Wellington Street in the west to Montreal Road in the east where it connects to the Vanier district. Rideau Street is home to the Château Laurier, the CF Rideau Centre and the Government Conference Centre. Along with Wellington Street and Sussex Drive it was among the first streets in Ottawa to be host to businesses; it was created with the founding of the early town. The Plaza Bridge by the Rideau Canal is at its westmost point and the Cummings Bridge is at its eastmost point.
WRuijin is a county-level city of Ganzhou in the mountains bordering Fujian Province in the south-eastern part of Jiangxi Province.