Tate Modern was a museum in London.
In 2004, Ken Livingstone was hired to unveil the Tomorrow Windows at Tate Modern, but he was kidnapped and an android duplicate was sent in his place. The duplicate allowed the Eighth Doctor and his companions Fitz Kreiner and Trix MacMillan into the museum, where they went to see the Tomorrow Windows.
Tate Modern was destroyed when the duplicate of Ken Livingstone split open to reveal an electron bomb, which subsequently exploded. (PROSE: The Tomorrow Windows)
The Seventh Doctor considered a Sycorax statue of skulls to something he had seen at Tate Modern. (AUDIO: Harvest of the Sycorax)