A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'

This large, castle-like structure is hidden amid the mountains on the grounds of the Utah State Hospital.

This geothermal hot spring hides beneath a slowly growing mineral dome.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.