Subway, 1 stop, crowded, many passengers, kids, arriving at and departing from station, New York City, USA

Subway ride, 3 stops, few passengers, arriving at and departing from stations, New York City, USA

Subway ride, 4 stops, small quiet crowd, ventilation, short version, New York City, USA

Subway ride, 7 stops, arriving at and departing from stations, varying crowds, k00:07:16:16, New York City, USA

Subway ride, 2 stops, medium crowd, conversations, New York City, USA

Subway, 6 stops, small quiet crowd, ventilation, many short rides, New York City, USA

Subway, U2, 2 stops, newspaper, small crowd, short rides, Vienna, Austria

Subway entrance, Vienna, people pass, escalators, Vienna, Austria

Subway ride, calm, little activity, no stops, Vienna, Austria

Subway ride, 3 stops, passengers talking, cat meowing, arriving at and departing from stops, warning sound when doors are closing, Paris, France

Subway ride, 11 stops, passengers talking, cat meowing from stop 6 onwards, arriving at and departing from stops, warning sound when doors are closing, Paris, France

Subway train ride, 3 stops, passengers talking, train accelerating, rails screeching, train stopping, doors opening, passengers getting on and off, Rome, Italy

Subway train ride, 5 stops, passengers talking, train accelerating, rails screeching, train stopping, doors opening, passengers getting on and off, Rome, Italy

Underground, platform, South Kensington, Piccadilly line, 3 trains arriving and leaving, London, UK

Underground, subway ride, Piccadilly line, few passengers, 3 stops

Subway, Vienna, platform with passengers, two trains approaching and leaving

Subway, Vienna, U3, large crowd, two short rides