Architecture as a clue: roofs, walls and colours

Published 4 November 2026 · 10 min read

Buildings are made by people responding to their climate, using the materials close to hand and following traditions that can last for centuries. That makes them one of the most dependable clues there is, especially in towns and cities where the countryside is out of sight. This guide covers roofs, walls, colours, places of worship, shopfronts and fences, with a summary table at the end.

Why buildings make good clues

Three things shape how a house looks. Climate decides what the roof and walls must cope with: heavy snow, fierce sun, monsoon rain or almost no rain at all. Local materials decide what is cheap and easy to build with, whether that is timber, clay, stone or concrete. And tradition decides the details, from the shape of a gable to the colour of the paint.

Almost no building feature belongs to a single country, so treat each one as a way to shorten the list. A flat roof with a water tank won't tell you which Middle Eastern country you are in, but it does make Norway very unlikely. Combine buildings with language and road clues, and the answer usually becomes clear.

Roof shapes and materials

Steep roofs

A steep roof sheds rain and snow quickly. Steep roofs of dark tiles or slate are common across central and northern Europe, from northern France and Germany to Poland and Czechia, and steep metal roofs are common in the Nordic countries. The Alps are an interesting exception: traditional chalets in Switzerland, Austria and southern Germany often have wide, gently sloping roofs with deep overhangs.

Flat roofs

Flat roofs suit dry climates where heavy rain is rare. They are common across the Middle East, North Africa and much of South Asia, and in many Latin American towns. Flat roofs are handy for drying washing, and water tanks are often perched on top. Around the eastern Mediterranean, rooftop solar water heaters, a flat dark panel with a metal cylinder above it, are a very common sight in Israel, Cyprus, Greece, Turkey and Jordan.

On many flat-roofed houses, steel reinforcing rods stick up from the corners of the roof. This usually means the house is being built in stages: families add another floor when they are ready, sometimes for the next generation to live in. You will see this in Albania, Greece, Turkey, Egypt, Peru and Bolivia, among many others.

Clay tiles

Curved terracotta tiles in orange and red are the classic Mediterranean roof, seen across Spain, Portugal, Italy, southern France and the coast of Croatia. Spanish and Portuguese settlers brought the same style to the Americas, so red tile roofs are also common in Mexico, Brazil and much of Latin America. Telling neighbours apart: the Balkans shows how to narrow things down in a region full of red-roofed towns.

Corrugated metal

Corrugated metal sheets are light, cheap to transport and quick to fit, and they cope well with tropical downpours. Metal roofs are therefore very common in many tropical countries across Africa, Southeast Asia, Latin America and the Pacific. They also appear far from the tropics: small towns in Iceland are known for brightly painted metal roofs, and many farmhouses in rural Australia and New Zealand have them too.

Thatch

Thatch is a roof covering of dried grass, reeds or palm leaves. Round houses with cone-shaped thatched roofs are traditional in many parts of southern and eastern Africa, including Lesotho and South Africa, and palm-leaf thatch is used on many tropical islands and coasts. Thatch survives in northern Europe too: England has many thatched cottages, and reed-thatched roofs can be seen in the Netherlands, Denmark and northern Germany.

East Asian roofs

Traditional roofs in China, Korea and Japan curve gently upwards at the edges and are covered in grey or dark glazed tiles. In Japan, many ordinary family homes still have tiled roofs in grey, black or other dark colours.

Walls and building materials

Brick

Brick is the classic building material of the Netherlands, Belgium and the United Kingdom, where long rows of red or brown brick houses line the streets. British terraced houses often have chimneys topped by several clay chimney pots in a row, one for each fireplace. Older Dutch and Belgian townhouses are tall and narrow, with big windows and decorative gables. Brick is also widespread in Denmark, northern Germany and Poland.

Timber

Where forests are plentiful, houses are made of wood. Painted wooden houses are typical of Norway, Sweden and Finland, and wooden village houses with carved, painted window frames are a feature of rural Russia. In the United States and Canada, most houses have a timber frame covered in horizontal boards called siding, often with a porch at the front. Wooden houses are also common in southern Chile, New Zealand and Japan.

Stone and adobe

Stone houses and walls are traditional in rocky, hilly places: Mediterranean villages, the Alps, and the west of Ireland and Britain, where dry-stone walls divide the fields. In dry regions with little timber, people have long built with adobe, which is sun-dried mud brick, or with packed earth. Earth-coloured adobe houses are common in the Andes of Peru and Bolivia, and earthen buildings are traditional in Morocco, the Sahel region of West Africa and parts of the Middle East. The Great Mosque of Djenné in Mali, built of mud brick, is one of the best-known examples anywhere.

Concrete and apartment blocks

Large concrete apartment blocks built in the second half of the twentieth century fill the suburbs of cities across Russia, Ukraine and many other countries of Eastern Europe and Central Asia. In South Korea, tall apartment towers stand in neat groups, each with a large number painted on its side so residents can find their building.

Colours

Paint colours are often traditional, and some are strongly regional.

Nordic red. In Sweden, Finland and Norway, a deep red wooden house with white corners and window frames is a classic countryside sight. The classic red paint, Falu red, is named after the copper mine at Falun in Sweden, whose leftover minerals provided the pigment. Yellow, white and ochre houses are common there too.

White. White walls reflect the sun, so whitewashed houses are common in hot, dry places. Greek islands are known for white houses with blue doors and shutters, many villages in southern Spain are painted white, and in southern Portugal white houses often have bands of blue or yellow around the doors and windows.

Bright colours. Strongly coloured walls are common in parts of Latin America and the Caribbean. Whole streets may be painted in blues, pinks, yellows and greens, and shop names and advertisements are often hand-painted straight onto the walls, especially in Mexico and Central America.

Pastels and earth tones. Old town squares in Central Europe, in countries such as Czechia, Poland and Austria, are often lined with houses in cream, pink, yellow and pale green. In Morocco, the city of Marrakech is known for its walls in warm, pinkish-red earth tones.

Places of worship

Places of worship are often the tallest and most carefully decorated buildings in a town, and their styles grew from both faith and local tradition, so the shape of a tower or roof can point to a region quickly.

Churches

Tall, pointed church spires rise above towns and villages across much of Europe and the Americas. Onion-shaped domes, often gold, green or blue, are typical of Orthodox churches in Russia, Ukraine and Belarus. Onion domes also top many Catholic church towers in southern Germany and Austria, so check the language as well. Greek Orthodox churches often have round domes, and on some Greek islands those domes are painted blue. In Latin America, a town's main church often stands on the central square, with one or two bell towers on its front.

Mosques

Mosques are recognisable by their minarets, the towers from which the call to prayer is made, and often by a large dome. Slim, pencil-shaped minarets with pointed tops are typical of Turkey and of the Balkans, including Bosnia and Herzegovina, Kosovo, Albania and North Macedonia. In Morocco and much of North Africa, minarets are usually square towers. In Malaysia and Indonesia you will find many styles, from large domes to traditional roofs built in tiers.

Temples, pagodas and stupas

Buddhist temples in Thailand, Laos and Cambodia have steep roofs stacked in layers, often with orange, red or green tiles, gold decoration and graceful pointed tips on the roof ends. In Japan, Buddhist temples are usually built of wood, and Shinto shrines are marked by a torii, a gateway of two upright posts and two crossbars, often painted bright orange-red. Pagodas, towers with several tiers of roofs, are found across East Asia and in Vietnam.

A stupa is a rounded, dome-shaped monument with a spire on top, built to hold sacred objects. Large white stupas are a familiar sight in Sri Lanka and Nepal, golden ones are common in Myanmar, and in Bhutan they are called chortens. Strings of colourful prayer flags on hillsides and bridges are typical of Nepal and Bhutan.

Hindu temples in India often have tall, richly carved towers, and in the south of India the great gateway towers are covered in brightly painted figures. On the Indonesian island of Bali, where most people are Hindu, many homes have their own small family temple, and temples are often entered through tall split gateways.

Small shrines line the roads too. In Thailand, Cambodia and Laos, many homes and businesses have a "spirit house", a little shrine on a post decorated with flowers and offerings. Small roadside shrines are also common in Greece, and wayside crosses and tiny chapels stand beside country roads in Poland, Austria and southern Germany.

Shops and shopfronts

In Malaysia and Singapore, rows of two- or three-storey shophouses have a shop on the ground floor, living space above and a covered walkway along the front that shelters shoppers from sun and rain. Vietnamese towns are full of tall, narrow "tube houses", often only a few metres wide, with a shop or workshop at street level. Streets in Japan are known for dense signs, many of them hanging vertically, and for drinks vending machines almost everywhere.

Pharmacies are a handy clue in Europe. A glowing green cross marks pharmacies in many countries, including France, Spain, Italy and Portugal, while in Germany pharmacies are marked by a red, old-style capital "A" for "Apotheke". In Mexico, small corner shops often call themselves "abarrotes", meaning groceries. For signs in other scripts, see How to read the world's alphabets.

Fences, walls and gardens

In the suburbs of the United States and Canada, front lawns often run straight to the pavement with no fence at all, and in the rural United States, mailboxes stand on posts at the roadside. In the United Kingdom and Ireland, front gardens are usually edged with low walls, hedges or railings.

In much of Latin America and in many African countries, houses commonly sit behind solid walls with a metal gate, so a street can look like a long line of painted walls and doors with roofs peeking over the top. Houses built around a private inner courtyard, facing inwards rather than towards the street, are traditional in North Africa and the Middle East. In villages in Russia and some neighbouring countries, tall fences of wooden boards or metal sheets often surround each house and garden. Reading landscapes covers what trees and plants can tell you.

Quick reference: features and where they are common

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