We saw calcified giants like this at Tintagel Castle in Cornwall.  From Shadowland, March 1921.

From Zabiyaka, 1906.

Though it's famously said that we can see farther than a giant when we stand on his shoulders, that may be an exaggeration.  Consider this evidence: in the case of one sitting on a log held by a giant's shoulder while he wades in a river, nobody sees very far.

From "The Three Giants" by Mrs. Marcet, in Eyes and No Eyes by M. V. O'Shea, 1900.

From Southwestern University's yearbook of 1931.

"I never answer the door because of the horrors that could lurk there" —John Darling, Woman in Black.  Our illustration is from Lustige Blätter, 1901.

From The Vision, or Hell, Purgatory, and Paradise of Dante Alighieri (1916).

Otus and Ephialtes holding Mars captive, from The Iliad of Homer.

From Kladderadatsch, 1933.

"Some of us and -- the rest of us."  From Monmouth's 1913 yearbook.

From Southwestern University's yearbook of 1931.

From the University of Wisconsin's 1919 yearbook.

The Merry Widow hat from 1908.