A faux European lane smack dab in downtown L.A.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

One of Los Angeles's first murals once vibrantly depicted the dangers of United States imperialism.

A Romanesque sanctuary of calm amid the bustle of downtown Los Angeles.

The remains of the first punk club in L.A.

The private clubhouse for the members of the Academy of Magical Arts.

The mall's looks were inspired by the cowboy extras who used to meet up—and cause real trouble—at this Hollywood hub.

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

An expansive book store, art gallery, and curio shop with wares ranging from tarot cards to novelty socks.

This vintage car parts store is also a museum devoted to a squat little gem of automotive history.

The art and history of the velvet painting are on full display in this Los Angeles museum.

Rare collectibles from automated musical instruments to 250 unique automobiles.

A little barn in the middle of the city preserving Hollywood treasures since 1985.

Wild West history in Hollywood style.

A historic fort commemorating the United States' naval history.

Once strictly off-limits, this lower level housing curious and priceless vehicles of the Petersen Automotive Museum is now open to the public.

A relief that wraps around the concourse of Los Angeles's World Trade Center marks one of the city's failed urban design plans.

The most unusual block in Brasília.

With its webbed walls and bright red coloring, Calgary's iconic bridge looks like a finger trap puzzle stretched across the river.

A series of concentric circles represented a bold new experiment in socialist urban planning, and it notoriously difficult to get around.

Planned as the world’s first zero-carbon city, it had lofty ideals—but is only 5 percent completed and aiming for 50 percent carbon-neutral.

The soaring gondola lines form the longest aerial cable car system in the world.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.