Large Zenith Telescope – Pitt Meadows, British Columbia - Atlas Obscura
72-inch reflecting telescope at Birr Castle, Parsonstown, Ireland. "Leviathan," completed in 1845, was the world's largest telescope until the early 20th century. William Parsons, 3rd Earl of Rosse (June 17, 1800 -
PDF] The Large Zenith Telescope Survey: a deep survey using a 6-m liquid mirror telescope | Semantic Scholar
Zenith telescope - Wikipedia
LZT spinning up the mercury... - YouTube
The Large Zenith Telescope project-a 6 meter mercury-mirror telescope | Semantic Scholar