ST. PETERSBURG, Russia — Glorious on one block, dismal on the next — St. Petersburg is a chalice holding the extremes of Russia's history.

For an outsider trying to grasp Russia's sweep and complexities in a short trip, St. Petersburg may be the ideal synopsis. It's the pinnacle of czarist ostentation and the place where Russian literature reached great heights. The city's miseries have been just as dramatic — the poverty and degradation that Fyodor Dostoevsky recorded, the three-year Nazi siege that drove the city into starvation and disease.

President Vladimir Putin's decision to hold the Group of Eight summit in St. Petersburg this weekend rather than in the capital Moscow underlines the sense that the city is the country's emotional essence.

Yet for all its psychological importance to Russia, a visitor's initial impression may be of how St. Petersburg doesn't seem very Russian at all. The city that Czar Peter the Great founded three centuries ago on swampy islands at the mouth of the Baltic Sea to be Russia's "window to the West" also gave European culture an inroad into Russia.

The city's emblematic church, St. Isaac's Cathedral, doesn't have the onion domes and spires typical of Russian Orthodox churches — it more resembles St. Peter's Basilica or a U.S. state capitol building. Nevsky Prospekt, the main avenue, displays an array of Western European and even American architectural styles.

The paradox is nowhere stronger than at the Hermitage. The buildings of the world-renowned museum, the essential stop of any visitor's trip, echo Italian and French baroque styles; inside, the highlights of the collection are Western art.

PALACE CHALLENGE

The most Russian aspect of the Hermitage may be its size: with more than 1,000 rooms (although not all are open to the public), it can be a bullying challenge as much as a delight. It's so overwhelming that a visitor may want to map out a strategy before setting foot inside the vastness. One can choose to concentrate on a few parts of the holdings, such as the Impressionist and Dutch/Flemish collections, the latter including the world's largest collection of Rembrandts, are particular favorites. Or try for an overview, which might seem cursory even after a full day. Simply taking in the rooms' elaborate decor without paying attention to what's on the walls could occupy hours.

If it's hard to imagine what life was like for the royals who lived in these rooms, the brain might be strained to breaking with the realization that these were only part-time residences. They also spent considerable time at an array of palaces, including two just outside the city worth particular note. Peterhof is an operatic array of gardens, playful fountains and elegant buildings. The Catherine Palace is the home of the Amber Room, a reconstruction of the madly intricate mosaic panels that disappeared in World War II.

Other options to see opulence include the Yusupov Palace, notable as the site of the 1916 murder of Rasputin, or at least the murder's beginning — he was fed poisoned cakes and then shot in the palace, but apparently didn't die until thrown into the river.

St. Petersburg's Western aspects don't mean it's lacking specifically Russian sights. The Church of the Resurrection — also known as the Church on Spilled Blood because it is built on the site of the 1881 assassination of Czar Alexander II — is a riot of colorful onion domes, which rival Moscow's St. Basil's and its interior, most exceptional for its mosaic icons.

LITERATURE AND HISTORY

The State Russian Museum, undeservedly off most tourist itineraries, offers a thorough overview of Russian art, from Mikhail Nesterov's portrayals of Russian mysticism to Ilya Repin's vast canvas of Czar Nicholas II meeting with ministers in which the czar's weak and glazed expression seems to foreshadow the doom that fell upon him. The museum's folk art collection is a joy in its own right, and a worthwhile guide on how to judge the quality of tourist tchotchkes.

Also worth a trip to the end of Nevsky Prospekt is the Alexander Nevsky Monastery, slowly recovering from the deterioration that afflicted it during the Soviet decades.

Such dilapidation may be distressing to a visitor, but seeing the downside of St. Petersburg adds much to one's appreciation of the city. For Russians, the city is known both for its palaces and its hovels.

Visitors who venture a block or two off Nevsky Prospekt today find neighborhoods redolent of Dostoevsky's St. Petersburg — crumbling buildings, their courtyards dank and trash-strewn, prowled by stray cats and other creatures.

Many seek out the building along Griboyedov Canal where the pawnbroker was killed in "Crime and Punishment." Enter through the archway at Srednaya Podyachevskaya 15, look for the open door to a stairwell with brass railing balls worn bright by visitors and trudge up the narrow, dark stairs to the third floor. Try to remember the killing was only fictional, even though the stairs are so creepy that one suspects a real homicide is imminent.

The less thrill-seeking can content themselves by seeing the building from one of the tour boats that ply the canals on the Neva River. The boats also provide views of an array of other important sights, including the golden needle of the church at Petropavlovsk Fortress, where many czars are buried. And some routes give a look at the Mariinsky Theater, whose ballet and orchestra lately have overwhelmed Moscow's in esteem.

Cultural events such as the Mariinsky performances can be a tough ticket in the summer, when the city is flooded with visitors basking in the White Nights, the period when the sun barely sets, the night sky glows, and the jet-lagged thrash about in bed unable to get body-clocks adjusted.

Tourist trade — and hotel prices — drop significantly in winter, but the city's appeal remains high then. The dark days and the ice-choked Neva lend St. Petersburg a baleful majesty in those months.

Both light and dark, gloomy and gay, Eastern and Western — St. Petersburg distills all of Russia.

Historic city of grand palaces, museums shields darker world of Dostoevsky's neighborhoods