Liverpool has sadly lost two major overground railway stations i.e. Central and Exchange but like with the facade of Exchange a part of Central survives and it’s a Cafe Nero at present.
Wikipedia says of the old overground station:-
The original station, which was a large, above-ground terminal station, opened on 2 March 1874, at the end of the Cheshire Lines Committee (CLC) line to Manchester Central. It replaced Brunswick station as the CLC’s Liverpool terminus, becoming the headquarters of the committee. The three-storey building fronted Ranelagh Street in the city centre, with a 65 feet (20 m) high, arched iron and glass train shed behind.
There were 6 platforms within the station, offering journeys to Manchester Central (in 45 minutes, making the route the quickest and most direct between Liverpool and Manchester), London St. Pancras, Hull, Harwich, Stockport Tiviot Dale, Southport Lord Street and an alternative London route to that of the Midland Railway, terminating at London Marylebone.
Until the nationalisation of Britain’s railways, the station was always busy, but as with many other stations in the UK, it was closed under the Beeching Axe, as the routes served could be taken from nearby Liverpool Lime Street. In 1966, most services on the CLC route were diverted to Liverpool Lime Street via the Hunts Cross chord, leaving only a dozen urban commuter trains per day to and from Gateacre. These final services were withdrawn on 17 April 1972 with a promise to reinstate the Gateacre route when the Merseyrail network was completed in 1978.
The High Level station was demolished in 1973, having served a short time as a car park, although some former station buildings remained while work was in progress on rebuilding the underground station in the mid-1970s.
Here’s a much older photo that I found after much trawling as there seem to be few shots of the former Parcels Office out there. The stonework on the right hand side is the give away as it is the same stonework as the side wall of Cafe Nero. Of course the entrance is now the Bold Street access to the modern underground Central Station.