Binairy code?

"How about this, Watson?" Holmes asked, handing me a
piece of paper.

"It is a binary code," I replied.

"Come on, Watson," said Holmes. "Computers are far from
invented. In addition, computers with combinations of 32,
64 or 128 bits, a power of two. I count an odd number
of digits. But the number of digits is a clear indication. "

I stared at the paper. I wrote the digits down and tried
to discover something.

"I see it!" I cried suddenly. "And it is here in London!"

"You're beginning to learn it," laughed Holmes. "Let's take a hansom and
go there! "

00000000000000000000000000000000000000000000000000 0000
00000001000000000100000001110000000111000000111111 1111
11100000011100000001110000001110000000111000000111 0000
00011100000011100000001110000001110100010111000000 1111
00000111100011111100000001111110001110000000111000 0001
11000000011100000000000000000000000000000000000000 0000
0000000000000000000000000000000000000

What does the code say and how do you read it?