Related Clues:
- Overhead trains
- N.Y.C. sights beginning in the 1870's
- '... or ___!'
- Woods rival
- Urban trains, for short
- Level ends?
- See 52-Across
- The six of ''Little Nellie Kelly''
- Hollow center?
- Cousins of monorails
- Tiger's rival Ernie
- Trains overhead
- Urban transportation
- 2002 British Open champion
- Ernie of the PGA