Matches in DBpedia 2014 for { ?s ?p 1800. }
- Montgomery_Saltbox_Houses yearOfConstruction "1800".
- Mount_Athos_(Kelly,_Virginia) yearOfConstruction "1800".
- Mountain_Meadow_Farm yearOfConstruction "1800".
- Mt._Pleasant_Iron_Works_House yearOfConstruction "1800".
- Museum_of_Appalachia yearOfConstruction "1800".
- Mynderse-Frederick_House yearOfConstruction "1800".
- Nallin_Farm_Springhouse_and_Bank_Barn yearOfConstruction "1800".
- Nelson_County_Jail yearOfConstruction "1800".
- Newton_Cannon_House yearOfConstruction "1800".
- North_Main_Street_Historic_District_(Canandaigua,_New_York) yearOfConstruction "1800".
- Oak_Grove_(La_Plata,_Maryland) yearOfConstruction "1800".
- Oakland_Plantation_(Fort_Motte,_South_Carolina) yearOfConstruction "1800".
- Old_Homer_Village_Historic_District yearOfConstruction "1800".
- Orange_Grove_Plantation yearOfConstruction "1800".
- Peachcroft yearOfConstruction "1800".
- Petersburg_Old_Town_Historic_District yearOfConstruction "1800".
- Piatt's_Landing,_Kentucky yearOfConstruction "1800".
- Piney_Grove yearOfConstruction "1800".
- Piney_Grove_at_Southall's_Plantation yearOfConstruction "1800".
- Poppletown_Farmhouse yearOfConstruction "1800".
- Port_Oneida_Rural_Historic_District yearOfConstruction "1800".
- Powell-McMullan_House yearOfConstruction "1800".
- Price's_Post_Office yearOfConstruction "1800".
- Prospect_Hall_(Frederick,_Maryland) yearOfConstruction "1800".
- Provost_(Powhatan,_Virginia) yearOfConstruction "1800".
- Quinby_Plantation_House-Halidon_Hill_Plantation yearOfConstruction "1800".
- Rancho_Los_Alamitos yearOfConstruction "1800".
- Ravenshurst yearOfConstruction "1800".
- Rebecca_Vaughan_House yearOfConstruction "1800".
- Red_River_Meeting_House yearOfConstruction "1800".
- Red_River_Presbyterian_Meetinghouse_Site_and_Cemetery yearOfConstruction "1800".
- Reef_Bay_Sugar_Factory_Historic_District yearOfConstruction "1800".
- Riter_Boyer_House yearOfConstruction "1800".
- Robert_Ferguson_House yearOfConstruction "1800".
- Roberts_House_(Canonsburg,_Pennsylvania) yearOfConstruction "1800".
- Rockdale_Common_Housing_District yearOfConstruction "1800".
- Rose_Hill_(Guilderland,_New_York) yearOfConstruction "1800".
- Saint_James_District yearOfConstruction "1800".
- Samuel_Stoner_Homestead yearOfConstruction "1800".
- Samuel_Viall_House yearOfConstruction "1800".
- Sanford-Curtis-Thurber_House yearOfConstruction "1800".
- Schoolridge_Farm yearOfConstruction "1800".
- Scott-Walker_House yearOfConstruction "1800".
- Seton_Hill_Historic_District yearOfConstruction "1800".
- Sewall-Belmont_House_and_Museum yearOfConstruction "1800".
- Shrewsbury_Historic_District_(Shrewsbury,_Pennsylvania) yearOfConstruction "1800".
- Silvernail_Homestead yearOfConstruction "1800".
- Simmons-Edwards_House yearOfConstruction "1800".
- Simpson's_Grove yearOfConstruction "1800".
- Sipperly-Lown_Farmhouse yearOfConstruction "1800".
- Smuggler's_House yearOfConstruction "1800".
- Snow_Hill_(Laurel,_Maryland) yearOfConstruction "1800".
- Somerton_Historic_District yearOfConstruction "1800".
- South_Main_Street_Historic_District_(Geneva,_New_York) yearOfConstruction "1800".
- South_Otselic_Historic_District yearOfConstruction "1800".
- Southport_Historic_District_(Fairfield,_Connecticut) yearOfConstruction "1800".
- Springdale_(Crozier,_Virginia) yearOfConstruction "1800".
- Springfield_Plantation_(Fayette,_Mississippi) yearOfConstruction "1800".
- Stillwell-Preston_House yearOfConstruction "1800".
- Stone_House_on_Tanner's_Creek yearOfConstruction "1800".
- Stony_Hill_Cemetery yearOfConstruction "1800".
- Stover-Myers_Mill yearOfConstruction "1800".
- Strawberry_Hill_(Petersburg,_Virginia) yearOfConstruction "1800".
- Strickland-Roberts_Homestead yearOfConstruction "1800".
- Sunnyside_(Charlottesville,_Virginia) yearOfConstruction "1800".
- Superior_Courthouse_and_Bartlett_Mall yearOfConstruction "1800".
- Susquehannah_Turnpike yearOfConstruction "1800".
- Sussex_County_Courthouse_Historic_District yearOfConstruction "1800".
- Terry-Mulford_House yearOfConstruction "1800".
- The_Academy_(Heathsville,_Virginia) yearOfConstruction "1800".
- The_Grange_(Paris,_Kentucky) yearOfConstruction "1800".
- The_Homestead_(Haverstraw,_New_York) yearOfConstruction "1800".
- The_Wilderness_(Catonsville,_Maryland) yearOfConstruction "1800".
- Thomas_N._Wheeler_Farm yearOfConstruction "1800".
- Thompson_Farm_(London_Britain_Township,_Pennsylvania) yearOfConstruction "1800".
- Totomoi yearOfConstruction "1800".
- Tower_Homestead_and_Masonic_Temple yearOfConstruction "1800".
- Tweddle_Farmstead yearOfConstruction "1800".
- Vanderpool_Farm_Complex yearOfConstruction "1800".
- Virginia_Manor_(Natural_Bridge,_Virginia) yearOfConstruction "1800".
- Walkden_Farm yearOfConstruction "1800".
- Waters'_River yearOfConstruction "1800".
- Waveland_(Danville,_Kentucky) yearOfConstruction "1800".
- Waverly_(Marriottsville,_Maryland) yearOfConstruction "1800".
- Weisiger-Carroll_House yearOfConstruction "1800".
- Westland_Mansion yearOfConstruction "1800".
- William_Blacklock_House yearOfConstruction "1800".
- William_Boyd_House yearOfConstruction "1800".
- William_Collins_House_(Fall_River,_Massachusetts) yearOfConstruction "1800".
- William_Ogilvie_House yearOfConstruction "1800".
- William_Woodward_House yearOfConstruction "1800".
- Williams_House_(Ulmer,_South_Carolina) yearOfConstruction "1800".
- Windmill_at_Water_Mill yearOfConstruction "1800".
- Woodlawn_(plantation) yearOfConstruction "1800".
- Woodside_(Delaplane,_Virginia) yearOfConstruction "1800".
- Wye_Town_Farm_House yearOfConstruction "1800".
- Wyoming_(Studley,_Virginia) yearOfConstruction "1800".
- Zion_Episcopal_Church_Complex_and_Harmony_Cemetery yearOfConstruction "1800".