Russia

The line runs as a single track from Moscow as far as Lake Baikal, then splits: the original Trans-Siberian continues northeast to Vladivostok, while the Trans-Manchurian and Trans-Mongolian branches turn south toward Beijing, via Harbin and Ulaanbaatar respectively — each requiring its own transit visas for the countries crossed. Riding the full Moscow-Vladivostok line non-stop takes six to seven days, which is why almost nobody does it that way; the standard approach is to break the journey at Yekaterinburg, marked as the exact border between Europe and Asia, at Novosibirsk, Siberia's largest city, or at Irkutsk, the closest major station to Lake Baikal.

Moscow's Kremlin developed organically over centuries as the seat of Russian power, its architecture layered from medieval fortress to imperial palace to Soviet-era additions. St. Petersburg, by contrast, was built from nothing on reclaimed Baltic swampland on Peter the Great's order, using Italian and Dutch architects brought in specifically to give the new capital a European look — which is why its canals, pastel palaces and grid-planned streets read so differently from Moscow's older, more layered centre. The city's northern latitude is also why the White Nights happen at all: for a few weeks around the summer solstice, the sun sits low enough below the horizon that the sky never fully darkens.

Baikal sits in an active continental rift valley that has been widening for roughly 25-30 million years, which is part of why it is both the world's oldest lake and, at 1,642 metres, its deepest — the rift keeps opening faster than sediment can fill it. That depth and age produced highly oxygenated water and a level of species isolation found almost nowhere else in freshwater, including the Baikal seal, the only entirely freshwater seal species on earth. In winter, strong winds sweep the ice clear of snow before it can insulate the surface, which is why the lake freezes into the transparent ice visitors walk and skate on rather than the opaque kind that forms elsewhere.

The Golden Ring towns — Suzdal, Vladimir, Sergiev Posad and others — were themselves the centres of power in the medieval principalities that Moscow grew out of, before Moscow consolidated control and became the seat of the unified Russian state; that history is why the region's monasteries, kremlins and onion-domed cathedrals concentrate so specifically in this one corner northeast of the modern capital rather than spreading evenly across the country. The onion dome itself is a functional shape as much as a decorative one — its curve sheds heavy snow far more effectively than a flat or gently pitched roof, a practical answer to the region's winters that became a defining visual signature. Most of the Ring is reachable as day trips or a short multi-day loop directly from Moscow.

Kamchatka sits directly on the Pacific Ring of Fire, where the Pacific Plate subducts beneath the Okhotsk Plate — the same collision that produces the peninsula's roughly 300 volcanoes, around 30 of them still active, along with its geysers and hot springs. Salmon run up the peninsula's rivers each summer to spawn, which is what draws the region's brown bears down to the water in concentrations rarely seen elsewhere, and why bear-watching trips are timed around the run rather than available year-round. There are no roads connecting Kamchatka to the rest of Russia, so every visit starts with a flight from Moscow or Vladivostok, followed by a guided expedition once on the ground.

Both companies premiered much of the repertoire they're still known for — the Mariinsky staged the first productions of several Tchaikovsky ballets, and the Bolshoi has performed Swan Lake since 1877 — and both maintain staging traditions passed down through their own companies rather than reconstructed from outside. The dancers themselves largely come through the same training pipeline: St. Petersburg's Vaganova Academy, founded in the 19th century, feeds the Mariinsky directly, while Moscow has its own equivalent state ballet school feeding the Bolshoi, which is part of why each company's style stays recognisably distinct from the other's.