The first time you walk through the gates of Tallinn Old Town, the instinct is to stop and look around to check if this is real. It is. The towers, the cobblestones, the merchants' houses — all of it is genuine, not reconstruction. Tallinn's medieval core survived the 20th century largely intact, which makes it one of the most complete medieval city centres in Europe.

It's also heavily photographed, extremely popular in summer, and entirely worth it.

Town Hall Square: The Heart of It All

Raekoja plats (Town Hall Square) is the centre of Old Town and the place every visit starts. The Gothic Town Hall dates from the 15th century; the surrounding merchant houses are equally old. The square hosts Tallinn's famous Christmas market in winter and becomes a café terrace in summer.

What to do here:

• Climb the Town Hall tower (open in summer, around €5) for views over the Old Town rooftops
• Look for Old Thomas (Vana Toomas) — the weathervane soldier on the tower spire, Tallinn's unofficial mascot since 1530
• Walk around the square's perimeter to see the guild hall facades and café terraces

The square is at its best early morning (before 09:00) and late evening (after 20:00 in summer). Midday in July it's a sea of tour groups. Time your visit accordingly.

Towers and Walls: The Defensive Ring

Medieval Tallinn was a fortified trading city, and much of its defensive wall and towers still stand. You can walk along sections of the wall and climb several towers.

Paks Margareeta (Fat Margaret) — the chunky round tower guarding the sea gate. Now houses the Estonian Maritime Museum. Worth a look for the building itself.

Kiek in de Kök — literally "Peep into the Kitchen" in Low German, a reference to how soldiers in the tower could look down into the townspeople's kitchens. Good views. Inside is a museum of medieval Tallinn.

The walls themselves: Walk the stretch between the towers from Nunne Street — you can walk along the top of a section of the medieval wall and look down into the gardens below.

The Oldest Pharmacy in Europe

Raeapteek, on the edge of Town Hall Square, has been operating as a pharmacy since at least 1422 — making it one of the oldest continuously operating pharmacies in the world. It's still a working pharmacy today (you can buy actual medicine here).

Inside, you can see historical cabinets, old medicine jars, and a display about medieval remedies. The medicines on offer back then included mummified bat, ground unicorn horn, and powdered wolf intestine. These were serious prescriptions.

It's free to enter and takes about 10 minutes. Worth it for the weirdness factor alone.

The Street Layout: Lower Town vs. Toompea

Old Town has two levels. Lower Town is where the merchants lived — the streets around Town Hall Square, Pikk Street, and the guild houses. Toompea Hill above it is where the nobles and bishops lived — the castle, the parliament, and the best viewing platforms.

The two levels are connected by a steep stairway and a road. Most visitors start in Lower Town and walk up to Toompea. That's the right order.

Pikk Street: The Merchant Spine

Pikk tänav (Long Street) runs north from Town Hall Square through the heart of Old Town. Walking its length takes you past the Great Guild Hall, the Brotherhood of Blackheads (a medieval merchant fraternity — their house facade is spectacular), St. Olaf's Church, and Fat Margaret tower at the northern end.

It's the best single walk in Tallinn and takes about 20 minutes at a browsing pace.

The Three Sisters

Three narrow medieval merchants' houses stand side by side near the Brotherhood of Blackheads. Now converted into a boutique hotel, but worth photographing from the street. They're the most-photographed individual buildings in Tallinn Old Town for good reason.

When to Visit

Old Town is year-round. Summer is crowded but atmospheric; the Christmas market (November–January) is genuinely special; spring and autumn have fewer tourists with mild weather.

Winter bonus: Snow on medieval towers looks exactly as good as you'd imagine.

For a self-guided walking route through Old Town with exactly which streets, viewpoints, and buildings to prioritise, the Tallinn Travel Guide has the complete itinerary.