[1][2] It is Italy's busiest railway station and the fifth-busiest in Europe, with a traffic volume of approximately 150 million passengers per year,[3] and with 850 trains in transit per day.

[5] With 32 platforms,[6] Roma Termini is the joint largest railway station in Europe, tied with Paris' Gare du Nord and Munich's München Hbf.

[4] The current building was designed by the two teams selected through a competition in 1947: Leo Calini and Eugenio Montuori; Massimo Castellazzi, Vasco Fadigati, Achille Pintonello and Annibale Vitellozzi.

This great hall is fronted by full-height glass walls, and is covered by a concrete roof that consists of a flattened and segmented arch, a modernist version of a barrel vault from a Roman bath.

The back of the hall leads to a transition space of ticketing functions and shops before reaching the train shed, and is topped by an even longer building block that houses a 10-story hotel, clad with travertine.

Its bold presence in the urban fabric expresses the diversity of the city's history, and speaks of the dramatic new scale of the modern industrial economy of Italy.