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Go subterranean and visit the site of the world’s first underwater shopping arcade. Designed by Brunel and originally opened in 1843, the tunnel under the Thames was repurposed for transport in 1869. The Grand Entrance Hall recently reopened to the public for the first time in 150 years. Now you can take a tour of this Brunel Museum conversion project, which began with the installation of the floor for a vast underground amphitheatre suspended above the underground line, created by Transport for London and engineers Balfour Beatty Carillion. Some of the museum's well-known supporters, including Jo Brand, Michael Palin and Zoe Wanamaker, have collaborated to produce an illustrated book of illustrated Brunel-inspired tales and each Sunday in December museum visitors can hear extracts told by the museum director. No booking is required, and the performances take place on the hour, every hour from noon until 3pm.
Entrance to the chamber is via a low entrance and temporary staircase. Proper access will only be restored when the full conversion is finished; contact the museum before visiting if you need more information.