London
Challengers to Silicon Valley include New York, L.A., Boston, Tel Aviv, and London.
Its journey from a Hasidic high schooler to viral fame is pretty cool, too.
WHAT'S HAPPENING
"When we share the same values, we all speak the same language -- whether that’s English or Java."
As the capital of the United Kingdom, London is a large and bustling city with an incredible amount of things to see and do.
Londoners were caught off guard when they found a woman taking her husband for a walk on a leash.