Regular Busses to see Sights

I had read somewhere that there are certain bus routes that one could use to see some of the sights.

Would anyone know the numbera?

Thanks:)

Which city?

If you mean London, every sight has lots of buses going past. Start here for all the information you could possibly need.

There are two specific bus routes which may have special appeal for visitors. The "old style" London buses, with an open platform on the back that you can jump onto and off whenever it's safe, even if the bus is not at a bus stop, are called Routemasters. A small fleet has been preserved, and these "Heritage Routemasters" operate parts of routes 9 and 15, going past a number of sights. The relevant part of the 15, for example, starts at the Tower of London, goes very close to the Monument, then to St Paul's, along Fleet Street and the Strand to Trafalgar Square, and so on.

The link below is to a tourists bus map of Central London with the main routes depicted that link the normal tourist sights

Tourists Bus Map

A very" BIG" thank you just the kind of map I've been looking for...all the place we want to see and how (or which bus to take) to get there.:D