There are two main railway termini in Douglas, and they belong to different lines. The Isle of Man Railway terminus, the steam-hauled line that runs south, is at the south side of town and is simply called Douglas Station. The Manx Electric Railway, the electric line that runs north toward Ramsey, terminates at the north side of town - and to avoid confusion, it took the name of the entertainment complex that once stood next door. Derby Castle was a vast ballroom and amusement venue, named in turn for the Earls of Derby, who had once ruled the Isle of Man. The complex was demolished in 1965 to make way for the Summerland leisure centre, which opened in 1968 and is itself remembered now mostly for the catastrophic 1973 fire that killed 50 people. The Aquadrome swimming pool was part of the same Summerland development. The amusements are gone. The station has kept their name.

From around 1900 a vast open roof called the Great Canopy stretched over the terminus, originally featuring intricate metalwork that culminated in a central clock tower. The clock tower is a feature of many early photographs. Later the metalwork was simplified into a plain roof, and the canopy itself was demolished in 1979 as unsafe and beyond economic repair. For years afterwards there was no shelter for passengers at all. A defunct tramcar from Lisbon was parked on the Groudle Siding as a makeshift waiting room. At another point a decommissioned Leyland National bus was pressed into service. In the 1980s, briefly, a horse car from the Douglas Bay Horse Tramway served as the shelter. The stanchions that once held up the Great Canopy are still there - some are used as flagpoles, others as lampposts. You can still trace the rectangle the canopy covered, even though the canopy itself has been gone for over forty years.

The pub next door, now the Terminus Tavern, was built in 1890 as Strathallan Lodge. It was railway property until 1957, when nationalisation passed it to the local brewery. It only became the Terminus Tavern in 1982. The walls inside are lined with photographs of the line, old handbills, posters. Off-duty railway workers still drink there. Behind the pub stand the Strathallan Crescent houses, one of which was the registered office of the tramway when it was originally built. The railway company owned the whole site - the row of houses, the horse tram sheds, the offices above - until 1978, when the entire network was taken into government ownership and the houses were sold off. The railway's offices then moved into the building above the horse tram sheds. That building was demolished and rebuilt in 2019, in a similar style to the original. The replacement is now the local authority's Strathallan Suite, with a Chinese restaurant and private dwellings inside.

The original power station on the reclaimed Port-E-Vada Creek land did more than power the trams. From 1897 it also supplied the first electric street lamps on the Isle of Man, lighting the streets of nearby Onchan. The power station building still stands at the adjacent depot, though it has been used for maintenance for many decades and the chimney is long gone. The station itself was redeveloped extensively in 2018-2019, with new offices, a new booking office and a new tramway headquarters built behind the original 1897 hut. Since then the historic hut has been used mainly as a crew room. Trams still come and go on the same tracks that were laid in 1892. The loop that lets the motor car shunt around its trailer is still in use. The station has changed almost everything around it without ever quite reinventing itself.