Floyd Collins
Videos
William Floyd Collins was an American cave explorer who became trapped and died in what became Mammoth Cave National Park. The incident earned major media attention during the efforts to rescue him.
Collins' home – 1st cave ticket booth – (left) and 2nd cave ticket booth (right)
Stairway built by Collins and his brothers leading down to Great Crystal Cave
Collins's entrance to Great Crystal Cave
Sand Cave at Mammoth Cave National Park
Grotto
Videos
A grotto or grot is a natural or artificial cave or covered recess. Naturally occurring grottoes are typically small coastal caves associated with bodies of water and may be partially or fully submerg
Floyd Collins
…media. Collins explored several narrow passageways, including one which was reportedly no larger than 9" (23 cm) tall, and reported finding a large grotto chamber. The discovery was not corroborated by anyone else, but Collins worked several hours a day, for weeks on end, to create a more accessible entrance for…
Eternal Flame Falls in New York has an eternal flame inside a small grotto behind the falls
Grutas de García in Nuevo León, Mexico
Two vaulted grottoes at Taq-e Bostan, Iran, Sassanian era
Grotto entrance, Villa Torrigiani