Kaluga's most famous resident was a deaf schoolteacher who spent his evenings calculating how a rocket might leave the Earth. Konstantin Tsiolkovsky lived here for decades, teaching mathematics by day and writing on space travel, multi-stage rockets and orbital stations at a time when most people thought the idea absurd. The city is proud of him to a degree that is almost touching: his wooden house is a museum, and the State Museum of the History of Cosmonautics, a large modern building above the Oka, holds rockets, capsules and a remarkable collection of the Soviet space programme's history.
The city itself is old and sits on high ground above the river. It has around three hundred and forty thousand people, a centre of merchant houses and churches, the long arcaded Gostiny Dvor, and a famous stone bridge across a deep ravine, built in the eighteenth century and still in use as a pedestrian route. Kaluga was also close to a decisive moment in Russian history: in 1480 the armies of Moscow and the Golden Horde faced each other across the Ugra River nearby, and the Tatar withdrawal is traditionally seen as the end of the Mongol yoke.
Riding in, expect city traffic, trolleybuses and some poor surfaces, but also good views of the river as you cross. The real pleasure begins outside: the roads following the Ugra and the Oka run through forest and meadows, with gentle hills, river crossings and long, quiet stretches. Spring brings flooded meadows along the rivers, and early autumn is beautiful, with birch woods turning gold.
As a stop, Kaluga covers everything. Fuel, workshops, supermarkets, hotels, restaurants and coffee shops are all here, and the centre is walkable. The space museum takes a couple of hours if you are interested, and even a short visit is worth it for the sheer strangeness of seeing a Soyuz capsule in a provincial city. The view from the high bank over the Oka at sunset is a good way to end a day, and the city is a sensible base for exploring the Ugra National Park and the land art of Nikola-Lenivets to the west.