©
crispian stones: Escher-DSCF2143
©
crispian stones: Escher-DSCF2144
©
crispian stones: Escher-DSCF2145
©
crispian stones: Escher-DSCF2146
©
crispian stones: Escher-DSCF2174
©
crispian stones: Staircase Escher museum -DSCF2182