The Temple of Esna, 55 kilometres south of Luxor on the west bank of the Nile, is a Ptolemaic-Roman temple dedicated to Khnum, the ram-headed creator god. The main hypostyle hall — the only part fully excavated, the rest is still beneath the surrounding city — is in remarkable condition, its painted ceilings largely intact and still retaining colour after two millennia.
The temple is unusual in several ways: it was still being built and decorated during the Roman period, and its inscriptions include astronomical ceiling paintings and texts that mix Ptolemaic and Roman imperial names with traditional Egyptian hieroglyphs. It is smaller than Dendera or Edfu but entirely worth stopping at on a southern day trip. The site is easily reached by taxi or as part of a Nile cruise itinerary.