HTML character map

In HTML (and XML), there are 'character entity reference' that are used to represent non-ASCII characters. E.g. the character '→' can be encoded as →, to use in a non-Unicode-compatible text format. These characters will follow the style and size of your font.
For Emoji characters like 🥁 and 😆, check the Emoji character map.

<	lt: less-than sign math
¦	brvbar: broken bar (broken vertical bar)
®	reg: registered sign (registered trademark symbol)
°	deg: degree symbol
À	Agrave: Latin capital letter A with grave accent (Latin capital letter A grave)
Å	Aring: Latin capital letter A with ring above (Latin capital letter A ring)
Ø	Oslash: Latin capital letter O with stroke (Latin capital letter O slash)
Ý	Yacute: Latin capital letter Y with acute accent
ï	iuml: Latin small letter i with diaeresis
ý	yacute: Latin small letter y with acute accent
Η	Eta: Greek capital letter Eta
Λ	Lambda: Greek capital letter Lambda
ι	iota: Greek small letter iota
ς	sigmaf: Greek small letter final sigma
φ	phi: Greek small letter phi
	emsp: em space[d]
‘	lsquo: left single quotation mark
↵	crarr: downwards arrow with corner leftwards (carriage return)
∴	there4: therefore sign
⊇	supe: superset of or equal to

Wikipedia