Golden Gate Park's historic collection of plants.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Visible below the waves are memorials to the city's Gold Rush dead.

Tiki luxury on Nob Hill.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

An artsy hidden staircase leads to breathtaking views of San Francisco.

For lovers of Soviet cinema, this museum is home to a vast collection of artifacts and costumes.

An iconic Soviet statue of working-class people.

Stalinist skyscraper built with help of cryotechnology.

Home of the future Emperors of Russia.

A solemn, monumental, kitschy palace of worship honoring victory in the Great Patriotic War.

This newly renovated Soviet-era outdoor exhibition center is bigger than the principality of Monaco.

One of the world's tallest statues is also one of its most hated.

Gargantuan home of Russian science.

World's largest bell sits on the grounds of the Kremlin in Moscow.

The tallest hotel in Europe.

Moscow's imposing monument to the Space Age.

Former headquarters of the KGB.

A sculpture park of the tossed aside relics of the USSR, from Stalin to a massive Soviet emblem.