User veritas vita 

veritas vita  posted 9192 waymarks in 677 different categories within 11 countries and 50 regions, of these were 375 posted-first-in-region and also 65 posted-first-in-country.
Unfortunatly the user also has 111 waymarks with a missing region in the database.

In the following list are the categories listed where veritas vita is or was an officer. The star denotes an active officer role, if it is golden then veritas vita is also the current leader of the category.

active	Category	# Approvals	# Missings
	'You Are Here' Maps	61	359
	3 Dimensional Art	59	6
stars	3D Map Models of Our World and Beyond	158	-
	Arch Bridges	525	165
	Art Deco - Art Nouveau	44	46
	Battery Powered Personal Transport Rentals	6	-
	Beach Huts	4	2
	Bell Towers	122	68
	Cairns	15	-
	Canal Tunnels	19	1
	Car Part Sculptures	1	2
	Christian Crosses	1	121
stars	English Heritage - Cadw - Historic Scotland	35	33
	European Historic Survey Stones, Monuments and Benchmarks	32	87
	European Post Offices	29	9
	Historic Forts	40	23
	Insect Hotels	146	6
	Inside Airports	4	5
	Korean War Memorials	27	2
stars	LEGO Sculptures and Models	66	7
	Lucky 7	491	30
	Marinas	35	9
	Maritime Monuments and Memorials	33	31
	Medieval Churches	300	203
stars	Modern Olympic Venues	5	3
	Monopoly in the Real World	17	44
	Moving Bridges	74	-
	Municipal Parks and Plazas	36	107
	Neon Signs	28	111
	News Article Locations	73	59
	NPS Passport Cancellation Stations	7	-
	Odd-Shaped Buildings	3	59
	Oddball Museums	32	4
	Official Local Tourism Attractions	515	222
	Old Spanish Trail Auto Route	32	-
stars	Olympic Memorabilia	70	5
	Paleontology and Fossils	37	1
	Penny Smashers	27	2
	Picture Perfect Postcards	19	19
	Relief Art Sculptures	50	-
	Roadside Attractions	255	6
stars	Roller Coasters	42	3
stars	Route 66 - The Mother Road	34	-
stars	Satellite Imagery Oddities	0	144
	Stained Glass Windows	155	230
	Statues of Historic Figures	38	275
	Suspension Bridges	26	26
	This Old Church	582	456
	Timelines	58	-
	Train Stations/Depots	130	-
	U.S. 40 - The National Road	1	-
	Unique Steeples	1	32
	Vintage Movie Theaters	1	-
	Wikipedia Entries	1221	607