1. Alexander Nevsky Lavra Monastery, also known as the Holy Trinity Alexander Nevsky Lavra is located in St. Petersburg, Russia. It was founded in 1710 by Peter the Great in honor of Saint Alexander Nevsky, the Russian hero who won two great battles against the Teutonic Knights in the 13th century. The monastery features several beautiful churches and cathedrals, including the Baroque-style Trinity Cathedral, built in the early 18th century, and the Neoclassical-style St. Nicholas Cathedral, built in the early 19th century. The monastery also houses a cemetery where many famous Russians are buried, including Tchaikovsky, Dostoevsky, and Rimsky-Korsakov.

2. The working hours of the monastery are from 9 am to 6 pm (daily except Wednesdays) and the phone number is +7 812 274-28-09.

3. The admission fee is around 400 rubles for adults, and the ticket prices may vary depending on the season and the type of the tour. The monastery can be easily accessed by public transport, such as metro and bus. The nearest metro station is Nevsky Prospekt.