Speyer sits right on the Rhine, making it an easy add-on from several cities. It is about 90 km (56 miles) from Frankfurt, 40 km (25 miles) from Heidelberg, 115 km (71 miles) from Strasbourg, and 90 km (56 miles) from Baden-Baden. A private transfer covers any of these routes directly, so you arrive in Speyer's old town rather than at a station outside it.
Two to three hours covers the cathedral, the Domnapf, and a walk down Maximilianstrasse to the Altpörtel and Judenhof at an easy pace. Add the Technik Museum and you are looking at closer to a full day. Speyer is compact and walkable, so it is easy to split your time between the old town and the museum without rushing.
Yes, especially for families. It holds the largest space exhibition in Europe, with original and replica Soviet and American spacecraft and a dedicated Moon area. You can also walk out onto the wing of a real Boeing 747 and ride a slide off it, climb through a decommissioned U-boat, and stand beneath a giant Antonov An-22 cargo plane. Plan for at least two to three hours to see it properly.
Maximilianstrasse runs straight from the cathedral to the Altpörtel, one of Germany's tallest surviving medieval city gates at around 55 metres. Nearby, the Judenhof marks Speyer's medieval Jewish quarter, part of the UNESCO-listed ShUM sites, where the SchPIRA museum sits beside Europe's oldest preserved monumental mikveh, a ritual bathhouse dating to around 1120.
Speyer Cathedral is the largest surviving Romanesque church in the world and a UNESCO World Heritage Site. Its crypt is the largest Romanesque columned hall in Europe and holds the tombs of Holy Roman Emperors and German kings. Just outside the main door stands the Domnapf, a 1,560-litre stone bowl that every incoming bishop has traditionally had to fill with wine for the townspeople.
Speyer is not on Germany's main rail lines, so trains from cities like Strasbourg or Baden-Baden usually mean at least one change. A private transfer drives you door to door, drops you right by the cathedral, and waits while you explore, so your visit is not built around a return timetable.