The station that stands today was not the one first imagined. The original concept, drawn up by the eminent engineer Sir Charles Fox in England in 1866, was for an imposing two-storeyed structure, prefabricated in Britain, shipped to Queensland, and reassembled as the administrative centre of the colony's western railways. That grand plan gave way to something built closer to home. The masonry building that opened on the line in 1867 and was handed over in 1874 was designed by the colonial architect FDG Stanley and constructed by R. Godsall. It was the first masonry station building raised in country Queensland, finely detailed with quoined corners, arched openings, and scrolled brackets, the architecture of a colony announcing that its frontier railways had come of age.

Long-distance rail once ran on a rhythm of stops, and the refreshment room was the heartbeat. Toowoomba's, built in 1902 and extended over the following decades, survives as the last commercially operating railway refreshment rooms in Queensland. Step inside and the past is still set on the tables. Round timber tables and chairs fill a generously proportioned room beneath a pressed-metal ceiling with elaborate ceiling roses; cast-iron columns rise to floriated capitals; the walls carry large black-and-white photographs of local beauty spots. Where harried staff once raced to feed a platform full of passengers in the few minutes a train paused, the room now operates as a brasserie, one of the very few places in Australia where you can still eat in a working railway refreshment room from the age of steam.

At the northern end of the platform, under an open-sided pavilion, hangs a memorial that the railway built for its own. The Roll of Honour was crafted in the railway workshops themselves, a rare thing, its central panel crowned with a broken pediment carrying the Australian coat of arms and the words "Roll of Honour, 1914-1919, Queensland Railways Toowoomba Employees." Pilasters frame timber plaques where names are picked out in gold. The list runs to 559 people, railwaymen who left this yard for the First World War, and the geography of those names reaches far beyond Toowoomba itself. To stand before it is to read a community's grief carved by the hands of the men's own colleagues.

Beyond the elegant facade, the yard preserves the unglamorous machinery that made a railway run. A long corrugated-iron goods shed from 1896 stands on timber platforms supported by rough-cut logs. Signal Cabin A, taken out of service in 1993, still holds its full frame of colour-coded mechanical levers and brass track indicators, frozen mid-operation. There is a cast-iron water crane that once filled the boilers of steam locomotives, a wagon weighbridge, a Westinghouse brake examination pit, and two World War II air-raid shelters, one for railway staff, one for the public, built when even an inland city braced for bombs. Today the busy timetable is gone, replaced by Queensland Rail's twice-weekly Westlander threading through on its long run between Brisbane and Charleville. The station no longer commands the traffic it once did, but it has kept, more completely than almost anywhere else in the state, the look and feel of the railway that built Queensland.