Look magazine
Robert Ripley

Edmund Vincent Gillon
[Swimming hole.]

William A. Dobak
[Stalactites and stalagmites.]

Central Park & The Ramble [Central Park]

Central Park [Broome Street through Central Park]

These caves were the homes of the first inhabitants on Manhattan Island. Inwood Park.

Central Park [A. Central Park ; B. Cave in Central Park ; C. Rock Bank Bay.]

Central Park [A. Central Park ; B. Cave in Central Park ; C. Rock Bank Bay.]

Central Park [A. Central Park ; B. Cave in Central Park ; C. Rock Bank Bay.]

[Seton Cave.]

Currier & Ives
The Enchanted Cave.

J. M. Slaney
[Entrance to Cave.]

Currier & Ives
The Grottoes of the Sea.

[North entrance to cave, Central Park.]

[South entrance to cave, Central Park.]

[Indian cave, Hunts Point Road.]

[Entrance to the cave.]

Robert Cummings Wiseman
[Cave Dwelling in Part of Aqueduct Feed Tunnel for the Reservoir.]

Currier & Ives
The Fairy Grotto.

[Inwood Hill Park-Indian Cave Dwelling.]

[Seton Cave.]