Funny stairs at seoul subway

piano stairs in the underground walkway between euljiro 1-ga and city hall subway stations

There are stairs that look and sounds like piano keyboards at euljiro station , seoul metro subway.

Piano stairs are installed for the first time in seoul.

Hot-wire sensing device installed on both sides of stairs make piano sound when people step on it.

In order to attract more people and make it a tourist attraction, it was made by M feeling sound installation company commissioned by Underpass shopping mall, euljiro district.

Children as well as adults seem to like it so far.

You can find forest stairs at wang sip ri station in seoul subway , One of major transport and commercial area in seoul.
Thanks to dense wood(?) on the stairs , phytoncide fragrance is sprayed.
Walk up the stairs to hear forest birds and winds. these sounds and smell gives you brief comfort upon passing by
these stairs.
Made by samsungfire, insurance division of samsung company, this stairs seem to be unique and creative way for outdoor advertising media.