1. Stockholm, Sweden: T-Centralen Station. The Stockholm underground is actually considered the world's largest art gallery and nearly all of the stations resemble and art gallery or museum. In fact these are so awe-inspiring, many miss their trains as they admire the art work.
Derinkuyu, Cappadocia, TurkeyCappadocia city, located in central Turkey, is home to no less than 36 underground cities, and at a depth of approx. 85 m, Derinkuyu is the deepest.
The Seoul Subway in South Korea topped the list. The overall ranking takes into account every element of our study - so that includes the number of stations with step-free access, the price of a ticket and the age of the system (amongst many others).
The cities of Özkonak, Derinkuyu, and Kaymakli in Cappadocia, Turkey, are some of the most complete (and most underground) of our underground cities. Denrikuyu is estimated to have once been capable of housing 20,000 people, and actually connects to Kaymakli via an underground tunnel, eight kilometers long.
The list was topped by the reliable, safe and comfortable public transport in Berlin. 97 percent of Berliners raved about their city's transport network, with their metro U-Bahn offering travellers 175 stations across nine simple-to-navigate lines.
lines of the Métropolitain (Métro) subway system, first opened in 1900, are fast and frequent. Over many years, lines have been extended into the suburbs, and in 1998 a new, fully automatic line was opened to serve central areas of the city.
The London Underground first opened as an underground railway in 1863 and its first electrified underground line opened in 1890, making it the world's oldest metro system.
The Gare du Nord in Paris is the busiest train station in Europe, and the world outside Japan. It is estimated that approximately 214.2 million passengers go through the station each year.
Subterranean London refers to a number of subterranean structures that lie beneath London. The city has been occupied by humans for two millennia. Over time, the capital has acquired a vast number of these structures and spaces, often as a result of war and conflict.