host of characters codepoints.net

, that add to the characters before. Those are called Combining Marks. Unicode provides a handy FAQ on the details, but in a nutshell: If you add one after a character, it is placed on top of that previous one. So, a + ̊ = å. This may lead to all kinds of funny problems…

Mahjong tiles codepoints.net

Domino tiles codepoints.net

Box Drawing codepoints.net

(U+2500 to U+257F) and Block Elements (U+2580 to U+259F) cover most of your monospace command-line visualization needs.

U+FFFD codepoints.net

REPLACEMENT CHARACTER - when a character cannot be displayed (e.g., decoding an erroneous UTF-8 sequency), this code point steps into the breach.

U+FF03 codepoints.net

FULLWIDTH NUMBER SIGN - it is the "Japanese Hashtag" ＃. Sites like Twitter accept it as equivalent to the regular # (U+0023).

U+FEFF codepoints.net

ZERO WIDTH NO-BREAK SPACE - it’s name suggests, that it can be used like U+2060 WORD JOINER. And in fact the latter was introduced to inherit its semantics. This is because U+FEFF had become a special beacon called the byte order mark, that was placed on the beginning of some…

U+FE0F codepoints.net

VARIATION SELECTOR-16 - force colorful emoji. If this code point follows an emoji, an explicit colorful rendering of the emoji is requested (if the client supports it).

U+FE0E codepoints.net

VARIATION SELECTOR-15 - force black-&-white emoji. If this code point follows an emoji, an explicit monochrome rendering of the emoji is requested (if the client supports it).

U+FDFA codepoints.net

ARABIC LIGATURE SALLALLAHOU ALAYHE WASALLAM - longest decomposition form: 18 characters.

U+F8FF codepoints.net

PRIVATE USE CODEPOINT - this private use code point is rendered as Apple logo on many Apple devices.

U+D800 codepoints.net

to U+DFFF - surrogate code points. They are only reserved to ease UTF-16 encoding.

妛 codepoints.net

, 挧, 暃, 椦, 槞, 蟐, 袮, 閠, 駲, 墸, 壥, and 彁. These so-called “ghost characters” came to Unicode via the Japanese JIS standard, where they were added, because they were mis-read or misinterpreted from other signs, when JIS was compiled from original printed text sources.

U+5146 codepoints.net

and U+16B61 - code points that represent the highest “single-digit” number. In both cases that’s 1,000,000,000,000, a trillion.

U+3106C codepoints.net

CJK UNIFIED IDEOGRAPH 3106C - the character with the most strokes: 84. Take your time to write this one!

U+2E2E codepoints.net

REVERSED QUESTION MARK - the “irony mark” to express irony/sarcasm. A useful character⸮

U+2800 codepoints.net

BRAILLE PATTERN BLANK - A Braille pattern that has zero of its six or eight dots filled in. According to the standard: “* while this character is imaged as a fixed-width blank in many fonts, it does not act as a space” Essentially it is rendered as white-space, but since it is…

Draughts (or checkers) pieces codepoints.net

.

Go pieces codepoints.net

.

Die faces codepoints.net

and a nice die emoji.

Card suits codepoints.net

and even a whole deck of cards complete with joker and back of card.

Chess figures codepoints.net

.

Shogi pieces codepoints.net

, a Japanese variant of chess.

U+2060 codepoints.net

WORD JOINER - the same as U+00A0, but completely invisible. Good for writing @font-face on Twitter.

U+202D codepoints.net

and U+202E - change the text direction. Relevant XKCD:

U+200D codepoints.net

ZERO WIDTH JOINER - force adjacent characters to be joined together (e.g., arabic characters or supported emoji). Apple uses this to compose some emoji like different families.

U+200B codepoints.net

ZERO WIDTH SPACE - the inverse to U+00A0: create no space, but allow word breaking.

U+1F918 codepoints.net

SIGN OF THE HORNS - Rock on! 🤘

U+1F596 codepoints.net

RAISED HAND WITH PART BETWEEN MIDDLE AND RING FINGERS - the Vulcan salute. Live long and prosper! 🖖

U+1F574 codepoints.net

MAN IN BUSINESS SUIT LEVITATING - A rather curious character, that only made it into Unicode for its appearance in the Webdings font (for reasons of backwards compatibility).

U+1F4C0 codepoints.net

DVD - only code point name without any vowel (source)

U+1F402 codepoints.net

OX - shortest name.

U+1F3FB to U+1F3FF codepoints.net

. They are called “Emoji Modifier Fitzpatrick Type” 1 to 6, with 1 the palest and 6 the darkest. If one of these characters follows an emoji, that emoji is meant to be rendered in the appropriate skin color of the Fitzpatrick scale. If no such modifier is added, the skin tone…

Regional Indicator Symbols codepoints.net

U+1F1E6 to U+1F1FF resemble the 26 latin characters. They are used to create flag emoji. Since the Unicode consortium didn’t feel like getting on board with international politics, the solution to flags is to combine these 26 characters to the respective ISO code for a country…

U+1DD2 codepoints.net

COMBINING US ABOVE - this is the most romantic code point.

U+1D455 codepoints.net

is missing. It would be an italic small “h”. It was not encoded, because it would be identical to the Planck constant ℎ (U+210E).

U+1680 codepoints.net

OGHAM SPACE MARK - a space that looks like a dash. Great to bring programmers close to madness: 1 + 2 === 3.

U+10FFFF codepoints.net

(non-character) - last code point. The whole rest of its plane apart from U+10FFFE, the code points in the 0x100000-0x10FFFD range, are private use characters, guaranteed to be never filled by a future Unicode standard.

U+0F33 codepoints.net

TIBETAN DIGIT HALF ZERO - code point that represents the lowest “single-digit” number and at the same time the only negative one, -½.

U+037E codepoints.net

GREEK QUESTION MARK - a look-alike to the semicolon. Also a fun way to annoy developers.

U+00AD codepoints.net

SOFT HYPHEN - (in HTML: ­) like ZERO WIDTH SPACE, but show a hyphen if (and only if) a break occurs.

U+00A0 codepoints.net

NO-BREAK SPACE - force adjacent characters to stick together. Well known as   in HTML.

U+0080 codepoints.net

, U+0081 and U+0099. These so-called C1 control characters are more or less unspecified. They got into Unicode, because they were present in the very first version of what should later become ISO 10646, the ISO-standardized version of Unicode. They were meant to be part of an…

U+006F codepoints.net

LATIN SMALL LETTER O - leads the list of characters with confusable shapes. Of all the possible mappings in the list of confusable characters, the small “o” leads with a whopping 73 entries of similar looking glyphs, followed by U+006C LATIN SMALL LETTER L with 70 entries.

U+0000 codepoints.net

<control> - first code point.

National Biogeographic Map usgs.gov

A platform maintained by the United States Geological Survey (USGS) that provides a platform for analysis of questions about what species are where, how well protected they are, how vulnerable they are to stressors, and what management options will have the greatest benefit for…

LANDSAT Products usgs.gov

Landsat U.S. Analysis Ready Data (ARD) products are consistently processed to the highest scientific standards and level of processing required for direct use in monitoring and assessing landscape change.

National Hydrography usgs.gov

The NHDPlus High Resolution (NHDPlus HR), National Hydrography Dataset (NHD), and Watershed Boundary Dataset (WBD) are available for download and as map services. These datasets can help inform environmental planning and storm water management efforts in the US.

NLCD usgs.gov

The National Land Cover Database is generated in cooperation with the Multi-Resolution Land Characteristics Consortium (MRLC), a partnership of Federal agencies working together to produce current, nationally consistent, land cover products for all 50 US states and Puerto Rico.

The Nexus urbanismnext.org

Examines the potential impacts that new mobility, autonomous vehicles, e-commerce, and other innovations will have on cities and communities and catalogues various resources and tools related to them.