Tyndale Monument

This 111 foot (34 m) tall tower was built in 1866 by architect S.S. Teulon in honor of William Tyndale, translator of the New Testament.

Salviati decorated the cross on top of the monument with gold enamel Venetian mosaics.

Sources:
Salviati, Antonio. On Mosaics (generally). 1865. 50.
Wikipedia
Illustrated London News. November 17, 1866.
W. Lloyd MacKenzie, via Flickr @ http://www.flickr.com/photos/saffron_blaze/