Answer:
Construction of St. Petersburg .
Step-by-step explanation:
Tsar Peter the Great fought several wars and expanded the limits of the Russian empire. He decisively defeated Sweden in the battle of Poltava, breaking the power of the Swedish crown for good and taking territory from it. He also promoted the arts and science in Russia. He was an absolute monarch, an enlightened despot. His most enduring heritage is the construction of St. Petersburg, a city on the Baltic coast named after him, that he made the Russian capital. It´s still one of the most important cities of Russia, a center of arts and culture.