Architecture, read closely.

How to recognize a style in the street, the facts behind famous buildings, and the geometry of roofs and stairs, in metric and imperial.

1. 01Art Nouveau architecture: how to recognize it, and where it grewStyles — Art Nouveau architecture explained: dates, whiplash curves and iron, its names across Europe, key architects and how it differs from Art Deco.
2. 02Famous buildings of the world: 20 landmarks, with the facts checkedBuildings — 20 famous buildings from the Great Pyramid to Burj Khalifa, with sourced dates, designers and heights in meters and feet, plus a to-scale height drawing.
3. 03Georgian architecture: features, dates and how to read a Georgian houseStyles — Georgian architecture features explained: 1714–1830 dates, a street checklist, sash window dating, townhouse layout, and Georgian vs Federal vs Regency.
4. 04Googie architecture: the roadside style that sold the futureStyles — Googie architecture explained: how a 1949 coffee shop named a style, how to spot its tilted roofs and giant neon signs, and which landmarks survive.
5. 05Greek Revival architecture: how to read the temple frontStyles — Greek Revival architecture explained: US and UK dates, how to spot a Greek Revival house, the Doric, Ionic and Corinthian orders, and famous examples.
6. 06House Styles: How to Identify Yours, With Dates for Every Major US and UK StyleStyles — Identify your house style by roof shape, windows and porch. A dated table of US styles from Colonial to ranch and UK periods from Georgian to postwar.
7. 07Mid-Century Modern Architecture: Characteristics, Regional Variants and How to Identify a HouseStyles — What makes a house mid-century modern: dates, a feature checklist, roof types, materials, Case Study and Eichler homes, UK Span estates and key houses.
8. 08Modern Japanese architecture: from Meiji brick to timber eavesStyles — Modern Japanese architecture from Meiji brick to Kengo Kuma's timber stadium: a dated timeline, every Japanese Pritzker laureate, and key buildings.
9. 09Roof pitch angles: chart, conversions and minimum slopesTechnical — Roof pitch angles explained: a 1:12 to 24:12 chart in degrees and percent, how to measure pitch, rafter-length factors and minimum slopes by roof covering.
10. 10Types of architecture: a timeline of 17 styles, from the Pantheon to net-positive officesStyles — Types of architecture and architectural styles from Classical to sustainable design: dates, defining features and one dated example building for each.
11. T1Roof pitch calculatorTools — x:12, degrees, percent and rafter length.
12. T2Stair calculatorTools — risers, treads and code checks.
13. T3Room area calculatorTools — m² and sq ft for any room shape.