Sukharev Tower was one of the greatest landmarks of Moscow, built during the reign of Peter the Great. Building marks the transition between "old" and "new" Russia, being a classical example of "Muscovite baroque" artstyle, but being surved as a scientific and military center. Unfortunately, the building hasn't survived Stalin's era and was destroyed in 1934, however, it's still considered one of Russia's most important historical landmarks
Suggested bonuses represent Moscow's future as one of biggest financial and scientific centers of Europe (Russia's first university is build here) and birth of Russian modern academia:
1) +1 science from specialists all over empire
2) +1 commerce to river tiles for this city
Suggested techs are Replaceable parts (required tech for Rifling, which allowed Russia to build early modern infantry) and Education
Suggested bonuses represent Moscow's future as one of biggest financial and scientific centers of Europe (Russia's first university is build here) and birth of Russian modern academia:
1) +1 science from specialists all over empire
2) +1 commerce to river tiles for this city
Suggested techs are Replaceable parts (required tech for Rifling, which allowed Russia to build early modern infantry) and Education