The video explores the unique topography of San Francisco, focusing on its steep hills. It explains how hill steepness is measured and takes viewers on a tour of the city's steepest streets, including the famous Lombard Street. The video concludes with reflections on the challenges and beauty of San Francisco's hills.

What makes San Francisco's topography unique compared to other cities?

• It is completely flat.

• It has a large number of steep hills.

• It has no hills at all.

• It is located below sea level.

How is the steepness of a hill officially measured?

• By the number of cars that can drive on it.

• By the number of steps it has.

• By its height in meters.

• By its grade, which is the ratio of rise to run.

Which street was once considered the steepest in San Francisco?

• Lombard Street

• Broadway Street

• Filbert Street

• Baton Street

What is the maximum grade percentage for federally funded highways in the US?

• 20%

• 4-6%

• 15%

• 10%

What is unique about Baton Street in San Francisco?

• It is the most scenic street.

• It is the widest street.

• It has a 34% grade and is essentially a driveway.

• It is the longest street.

Why was Lombard Street rebuilt in 1922?

• To add more lanes for traffic.

• To make it a pedestrian-only street.

• To reduce its incline and add switchbacks.

• To make it longer.

What is a characteristic of the lesser-known steep streets in Bernal Heights?

• They have steep grades and are less visited.

• They are located in the city center.

• They are all flat.

• They are the most popular tourist attractions.

What makes Romulo Street particularly disorienting?

• Its straight path.

• Its lack of any incline.

• Its 2-axis tilt and steep grade.

• Its wide lanes.

What is the steepest street in San Francisco?

• Bradford Street

• Broadway Street

• Lombard Street

• Filbert Street