What you agree to.

Lucas Weinmann, in São Paulo, Brazil. Using the site means accepting what is on this page. Write to lucaspiccoliw@gmail.com about any of it.

You must be at least thirteen to make an account. Browsing needs no account at all.

Keep your password to yourself; what happens under your account is your responsibility. Use one account rather than several, and do not take a name that makes you look like somebody else.

You can delete your account whenever you like, in settings.

A photograph you upload belongs to you. Posting it gives this site permission to show it — on the building it belongs to, on your profile, and in the feed — and nothing further. It is not sold, not licensed to anyone else, and not used to advertise anything.

That permission ends when you delete the photograph or your account. Post only photographs you took yourself, or ones you have the right to post.

This site is for architecture. Nothing here — a photograph, a caption, a visit note, a biography, a display name, a username — may carry hatred or contempt for anyone on the grounds of race, colour, origin, religion, sex, gender, sexuality, disability or age. No slurs. No threats. No harassment of another person using the site. No sexual content. No gore, no cruelty, no images of violence. Nothing that celebrates any of it.

Post that and the account is banned. Not warned, not hidden, not given a chance to explain — banned, along with everything posted from it. I do not intend to argue about where the line is, and I will draw it wherever I think it belongs.

Posting somebody else’s photograph as your own. Posting a person who does not want to be posted. Pretending to be someone you are not. Advertising. Attacking the site, scraping it wholesale, or trying to reach parts of it that are not yours.

Any photograph on the site can be reported, and I read every report. I can remove a photograph or end an account when something here has been broken — usually after a report, occasionally without one, and without notice.

If you think an account was ended wrongly, write to me and say so. There is no formal appeal; there is one person reading the mail, and he will look again.

The description on each building was written by AI, from a source catalogue of Niemeyer’s work. No architectural historian has checked them. They are there to give a sense of what a work is, and some of them will be wrong about dates, attributions and details.

Treat them as a starting point rather than a source. If you find an error, tell me and I will correct it.

The point of this site is to send you to stand in front of a building, so this part matters more than the rest of the page.

Addresses and pins are imperfect. Some are marked approximate because that is honestly all that is known. Some works have been demolished or altered and the site may not say so yet. A few private houses are deliberately left off the map, and they should stay off it.

Check that a place is open and worth the journey before you travel. Respect private property, and do not enter anywhere you are not welcome — almost everything here is somebody’s home, workplace or school. Judge for yourself whether a neighbourhood and an hour of the day are right for you. Going to see a building is your own decision and your own risk.

Look at it, link to it, use it to plan a trip, quote a piece of it with a credit. What is not on offer is bulk copying: taking the descriptions or the photographs wholesale to build something else with them.

The coordinates are the exception. They are derived from OpenStreetMap, whose data is licensed under the Open Database License, and nothing here takes that away — they remain free to reuse on OpenStreetMap’s terms, with the credit that licence asks for. Map tiles are © OpenStreetMap contributors.

For anything larger — research, a class, a project of your own — email me. The answer is usually yes.

The site is free and comes as it is, with no promise that it is accurate, complete or available tomorrow. It can change or close at any time, and I am not liable for what follows from using it.

Brazilian law, with the courts of São Paulo. Your rights as a consumer under Brazilian law stand whatever this page says.

This page changes when the site does, and the date at the top moves with it. What the site stores about you is on the privacy page.