Blue Hole (Castalia)
The Blue Hole is a fresh water pond located in Castalia, Erie County, Ohio, in the United States. From the 1920s to 1990 the Blue Hole was a tourist site, attracting 165,000 visitors annually at the height of its popularity, partly because of its location on State Route 269, about southwest of the Cedar Point amusement park in Sandusky, Ohio.
Catacomb Hill
Catacomb Hill () is a prominent rock peak, high, on the ridge that borders the east side of the head of Blue Glacier, in Victoria Land. The New Zealand Blue Glacier Party of the Commonwealth Trans-Antarctic Expedition (1956–58) established a survey station on its summit in December 1957. They gave it this descriptive name from the spectacular cavernous weathering occurring in the granite of the peak, suggestive of catacombs.