Photo: Pedelecs, CC BY-SA 3.0 via Wikimedia Commons
A museum sailing ship (three-masted bark) from 1896, permanently moored off the Landungsbrücken. On board is a museum, a small restaurant, and an escape room.
© OpenStreetMap contributors
Portuguese Quarter
Especially during the warmer months the area around Ditmar-Koel-Straße has a very special flair. Lots of restaurants and shops invite one to linger.
One of the last generation of pre-containerisation cargo ships (built in the 1960s), now semi-permanently moored halfway between Landungsbrücken and the Speicherstadt, and is the largest functional cargo museum ship in the world. The ship has been restored and is maintained in full working order by volunteers (who take it out a few times a year, notably during the Hafengeburtstag celebration). You can visit the ship and walk around most areas, including the crew quarters, cargo compartments, and engine room. The ship also hosts a number of other minor attractions, including an exhibit on emigration and an escape room. The ship also has a few guest rooms for overnight stays.
Michel
The youngest and most famous of the five is also the only baroque church. This building is not the original St. Michaelis - that one (built 1647-1669) was destroyed by a lightning strike in 1750. It was not until 1786 that the present church was erected on the site. From the tower (450 steps, or take the elevator) you'll have a great view over the city. Entry to the church is free, but the tower and the crypt cost extra (around €5/person).