New York and Houston It has a fiberglass spire on the top of the building that supports the antenna The building has a crown inside it which is visible up to 30 miles away (48.1 km) 35 Floors Alaska LORAN-C transmitter Port Clarence Height: 1,350 ft (411 m) Port Clarence () Year built: 1961 Owner: U.S. Coast Guard Demolished on April 28, 2010 Knik TV Mast Height: 808 ft (246 m) Knik () Year Built: 1986 Owner: Alaska Public Telecommunications Inc Arizona Midwest Tower Dolan Springs Height: 1,299 ft (396.3 m) Dolan Springs Year built: 2000 Chimney of Hayden Smelter Height: 1,001 ft (305 m) Flue gas stacks of the Navajo Generating Station Height: 775 ft (236 m) Page () Year built: 1996-1998 Owner: U.S. Bureau of Reclamation (24.3%), SRP (21.7%), Los Angeles Dept. of Water and Power (21.2%), Arizona Public Service Co. (14.0%), NV Energy (11.3%), Tucson Electric Power (7.5%) The Navajo Generating Station, a coal-fired power plant located 4 miles (6 km) east of Page, has three 775 ft (236 m) lined, reinforced concrete stacks. The plant's original stacks were demolished in the late 1990s after being replaced by larger diameter stacks of the same height. The new stacks were required to accommodate cooler, saturated flue gas that resulted when wet SO2 scrubbers were added. The tallest radio tower is the 650 ft (198 m) KSZR (97.5) tower in Oro Valley near Tucson. Arkansas KTVE Television Tower (El Dorado NBC 10) Height: 1970 ft (600.4 m) Bolding () Year built: 1987 Owner: Grapevine Communications California KXTV/KOVR Television Tower Height: 2,049 ft (624.5 m) Walnut Grove () Year built: 2000 Owner: Gannett/CBS This is the sixth-tallest structure in the world, just behind KVLY-TV mast and KRDK-TV mast in North Dakota (Burj Khalifa is the tallest manmade structure in the world). KXTV (ABC News 10) and KOVR (CBS 13), serve the Sacramento – Stockton – Modesto market. The tower has been used for research ozone sampling at different heights. In the same area, there are the 2,000 ft (609.6 m) high Hearst-Argyle Tower () and the 1,994 ft (607.8 m) high Channel 40 Tower (). Colorado Radio communications tower: KJHM, KFCO Height: 1,996 ft (608 m) Hoyt () Year built: 2003 Owner: Max Radio of Denver. Tower primarily used for penetration into the Denver radio market. Connecticut WTIC Television Tower (Hartford Fox 61) Height: 1,339 ft (408 m) Farmington ()