Monastiraki: the square and the flea market
A square that stacks twelve centuries, the Sunday junk-lanes of Avissinias, and the Psyrri edge. This is a Claude-drafted route awaiting the editor's walk.

1. Monastiraki Square
Start in the square that holds the whole city's history at once — a Byzantine church, an Ottoman mosque, a Roman library wall and a 19th-century station, all in one glance with the Acropolis behind. Stand by the church in the middle and turn a slow circle before you move.

2. Tzistarakis Mosque
The pink-domed Ottoman mosque on the square's north side, built in 1759 and now a ceramics museum. The story goes its builder demolished a Parthenon column for lime and was punished for it. You can read the building from the square; the museum inside is small and calm.

3. Hadrian's Library
Just north, the long ruined wall and surviving Corinthian columns of the emperor's grand library, built in 132 AD around a colonnaded court and a pool. The face on Areos street is the one to walk; the site entrance is round the corner if you want in.

4. Avissinias Square
The heart of the actual flea market — a small square ringed with antique and junk dealers, busiest on a Sunday morning when the spillover stalls take over the lanes. Brass, old cameras, single chairs, things you didn't know you wanted. Haggling is expected; browsing is free.

5. Ifestou Street
The flea-market spine running off the square — leather, vinyl, army-surplus, tourist tat and the genuinely good, side by side. Walk its full length. The shops here trade every day, not just Sunday, but Sunday is when the street has a pulse.

6. The Psyrri edge
Cross north into Psyrri, the old workshop quarter now thick with bars, *tavernes* and street art — quieter by day, loud by night. Have a coffee or a mezze here, then cut back south to Thiseio and the metro along the rim of the Agora.

Monastiraki: the square and the flea market