A
Animals Artists
B
Billionaires
C
Cars
D
Dinosaurs
E
Ecosystems Elements Empires Engines Explorers
F
Football
G
Galaxies Games Gemstones Gods Guitars
H
Helicopters Herbs Heroes Holidays Horses
I
Insects Instruments Inventions Islands Italian Foods
J
Japanese Foods Jets Journalists Juices Jungles
K
Keyboards Kings Knights Knives Korean Foods
L
Lakes Landmarks Languages Libraries Lighthouses
M
Musicians
N
News
O
Oceans Olympic Sports Operas Ores Organs
P
Paintings Philosophers Planets Programming Languages Pyramids
Q
Quadcopters Quakes Quarterbacks Queens Quiz Shows
R
Reptiles Rivers Robots Rockets Rollercoasters
S
Stocks
T
Trending
U
Underground Railways Universities Uprisings US States Utensils
V
Valleys Vegetables Vikings Vitamins Volcanoes
W
Watches Waterfalls Whales Wines Wonders
X
X Games Sports Xbox Consoles
Y
Yachts Yoga Poses
Z
Zebras Zeppelins Zodiac Signs Zombie Films Zoos

#2 Underground Railway

New York Subway

Subway
New York City
1904
One of the world's largest and busiest transit systems, running 24/7 with 472 stations.

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