Sphinxes are mythical creatures with a human's face, a lion's body, and raptor's wings. The entrance to the Citadel is flanked by two stone sphinxes.

In the books

Complete Guide to Westeros Maesters Citadel

The entrance to the Citadel, flanked by two giant stone sphinxes.

In the A Song of Ice and Fire novels, sphinxes are legendary creatures that are said to speak in riddles. Valyrians also had their own version of sphinxes, though these had a dragon's body instead of lion's. Statues in the shape of Valyrian sphinxes are still found on Essos, a relic of times previous to the Doom of Valyria. The entrance to the chambers of the small council in the Red Keep is also flanked by two Valyrian sphinxes.

See also