High line
Bryant park
Chelsea market
The vessel
Staten Island ferry
Brooklyn bridge
Central Park
Battery park
9/11 memorial
Charging Bull
Central station
New York Public Library
Ghostbusters firehouse
Friends apartment
SATC apartment
Coney Island boardwalk
Times Square
St Patrick's cathedral
MOMA on certain days
Chelsea galleries
All free.
There are so many cheap food options.
We liked Dunkin Donuts for breakfast or a bacon, egg and cheese from the street vendors. Generally around $15 total for the 4 of us.
There are pizza places everywhere but we never paid $8 a slice! At Joes it's less than $3 a slice.
East Broadway pizza was good and cost $1 dollar a slice. Two bros is good and again, it's a dollar.
Lunch deals are found all over but I'd recommend TriBeCa Tavern $10 dollar burger or sandwich and pint of beer.
Los Tacos no 1 in Chelsea market was around $3 each. Donuttery was good and cheap there too.
Wah Fung Fast Food in Chinatown always has a queue of locals outside. For a reason. Around $5 for a decent meal.
Carry chillys water bottles, all hotels have ice machines.
$15 for an hours boat hire in Central Park.
Like I said, once you start wanting to go up the Statue of Liberty, see several Broadway shows, go up all three viewing platforms then it will start to cost you.
Don't know where you bought your TOTR tickets because they're $38 dollars each. That's around £28.
It definitely doesn't make Copenhagen look frugal! You won't get a dollar slice there!