"A rear vault; an arch or a vault placed within the opening of a window or door, and differing from it in form, to increase the size of the aperture internally, to receive a charge from above, or to form an architectural junction between interior and exterior forms."-Whitney, 1902

Arriere-voussure

"A rear vault; an arch or a vault placed within the opening of a window or door, and differing from…

In Norse mythology, Aslog, daughter of Siegfried and Brunhild, becomes an orphan and is adopted by an old harp player, Heimir. Concerned about her safety, Heimir hides Aslog in his harp.

Aslog and Heimir

In Norse mythology, Aslog, daughter of Siegfried and Brunhild, becomes an orphan and is adopted by an…

A projecting watch tower, or other advanced work, before the gate of a castle or fortified town. The term barbican was more especially applied to the outwork intended to defend the drawbridge, which in modern fortifications is called the <em>tete du pont</em>.

Barbican

A projecting watch tower, or other advanced work, before the gate of a castle or fortified town. The…

An illustration of a young boy closing a door.

Boy Closing Door

An illustration of a young boy closing a door.

"An outside cellar, fitted to keep fruit or vegetables." &mdash; Baily, 1898

Outside cellar

"An outside cellar, fitted to keep fruit or vegetables." — Baily, 1898

An illustration of a young child at a door with an elderly man holding a candle.

Child at Door

An illustration of a young child at a door with an elderly man holding a candle.

"Doorway of Barfestron Church, Kent." &mdash;D'Anvers, 1895

Barfeston Church

"Doorway of Barfestron Church, Kent." —D'Anvers, 1895

The Arabian Bas-relief circular panel is a 14th century design found on a door in Cairo, Egypt.

Arabian Bas-Relief Circular Panel

The Arabian Bas-relief circular panel is a 14th century design found on a door in Cairo, Egypt.

A colonial woman attempting to listen through a door.

Colonial Woman

A colonial woman attempting to listen through a door.

The Greek console is shown in the front and side view. It is found as a support to the North door of the Greek Temple Erechtheum in Athens, Greece.

Greek Console

The Greek console is shown in the front and side view. It is found as a support to the North door of…

An opening in the outer or inner wall of a house for going in and out at.

Door

An opening in the outer or inner wall of a house for going in and out at.

This image depicts the door leading to the Puente Romano, a Roman bridge in Cordoba, Spain.

The Door of the Roman Bridge

This image depicts the door leading to the Puente Romano, a Roman bridge in Cordoba, Spain.

"A Simple and Inexpensive Home Apparatus for Exercise on the Horizontal Bar." — Blaisedell, 1904

Door with Horizontal Bar

"A Simple and Inexpensive Home Apparatus for Exercise on the Horizontal Bar." — Blaisedell, 1904

An illustration of a closed hinged door.

Closed Hinged Door

An illustration of a closed hinged door.

A fire door is a type of door or movable barrier used as part of a passive fire protection system within buildings to prevent the spread of fire or smoke between separate sections. It is usually the only means of allowing people to pass through a fire resistant wall.

Fire Door

A fire door is a type of door or movable barrier used as part of a passive fire protection system within…

Typically consists of three or four doors that hang on a center shaft and rotate around a vertical axis within a round enclosure.

Rotating Door

Typically consists of three or four doors that hang on a center shaft and rotate around a vertical axis…

A hinged or sliding door in a floor, roof, or ceiling.

Trap Door

A hinged or sliding door in a floor, roof, or ceiling.

A hinged or sliding door in a floor or ceiling

Trap Door

A hinged or sliding door in a floor or ceiling

An example of self-closing pen doors.

Pen Doors

An example of self-closing pen doors.

A Perpendicular style doorway and door paneling.

Doorway

A Perpendicular style doorway and door paneling.

Fox wearing a hat, jacket, and boots unlocks a door

Fox

Fox wearing a hat, jacket, and boots unlocks a door

"Sylvester's furnace doors or doors of similar form are preferable to the ordinary hinged doors, because they can be opened to any extent, and are less liable to get out of order." &mdash; Encyclopedia Britannica, 1893

Furnace Doors

"Sylvester's furnace doors or doors of similar form are preferable to the ordinary hinged doors, because…

"Some spiders, like the <em>Ctenizae</em>, close the mouth of their subterranean resdence with a most ingeniously-constructed trap-door, which the inhabitant closes with the utmost pertinacity when any attempt is made to invade the privacy of his domicile. Hence these, of which several species are found in the south of Europe and on the shores of the Mediterranean, are generally known as <em>Trap-door spiders</em>." &mdash; Goodrich, 1859

Garden-spider and trap-door spider

"Some spiders, like the Ctenizae, close the mouth of their subterranean resdence with a most…

A gate is a point of entry to a space enclosed by walls, or an opening in a fence. Gates may prevent or control entry, or exit or they may be merely decorative.

Wooden Locking Gate

A gate is a point of entry to a space enclosed by walls, or an opening in a fence. Gates may prevent…

A young girl reaching for the handle of a door.

Girl Opening Door

A young girl reaching for the handle of a door.

An illustration of a girl opening a door and holding a tea kettle.

Girl Opening Door & Holding Tea Kettle

An illustration of a girl opening a door and holding a tea kettle.

Two girls sweeping as one opens the door for a wolf.

Girls and Wolf

Two girls sweeping as one opens the door for a wolf.

This door-hinge is a 16th century German design.

Door Hinge

This door-hinge is a 16th century German design.

This gothic hinge comes from a door of a cabinet in a town-hall in Zwolle, Netherlands. It is a strap-hinge that terminates as a leaf.

Gothic Hinge

This gothic hinge comes from a door of a cabinet in a town-hall in Zwolle, Netherlands. It is a strap-hinge…

This Renaissance hinge is found on a door in Ettlingen, Germany.

Renaissance Hinge

This Renaissance hinge is found on a door in Ettlingen, Germany.

"The Greeks and Romans used hinges exactly like those now in common use. The following cut exhibits four Roman hinges of bronze, now preserved in the British Museum." &mdash; Anthon, 1891

Roman hinges

"The Greeks and Romans used hinges exactly like those now in common use. The following cut exhibits…

A jester entering into the royal court.

Jester

A jester entering into the royal court.

The door knocker is used to alert people inside the home to open the door by making a knocking noise.

Door Knocker

The door knocker is used to alert people inside the home to open the door by making a knocking noise.

The door knocker is used to alert people inside the home to open the door by making a knocking noise.

Door Knocker

The door knocker is used to alert people inside the home to open the door by making a knocking noise.

A device operated by a key, combination, or keycard and used, as on a door, for holding, closing, or securing.

Door Lock

A device operated by a key, combination, or keycard and used, as on a door, for holding, closing, or…

The door lozenge panel is a rhombus shape. It is a 17th century design found in the Nordlingen church in Germany.

Door Lozenge Panel

The door lozenge panel is a rhombus shape. It is a 17th century design found in the Nordlingen church…

Man at door.

Man

Man at door.

An adult male leaning on the bottom of a Dutch door standing at the entrance of a barn.

Man in Barn

An adult male leaning on the bottom of a Dutch door standing at the entrance of a barn.

An illustration of a man walking through a door.

Man Walking Through Door

An illustration of a man walking through a door.

Nothing reliable can by adduced concerning the age of the existing structural temples of India, which are called pagodas, from the word bhagarati, <em>i.e.</em> sacred house. They belong to both antiquity and modern times. Some of these pagodas are wonderfully large and magnificent. The consist of one or more quadrangular courts with towers at the corners, surrounded by a wall. Large pyramids rising in stages cover the entrance (shown here), behind which extend colonnades.

Entrance to a Pagoda

Nothing reliable can by adduced concerning the age of the existing structural temples of India, which…

Doorway at Persepolis.

Persian Architecture

Doorway at Persepolis.

Poor man knocks on small door

Poor man

Poor man knocks on small door

Reynard the Fox invites Tibert the Cat to spend the night. Tibert is summoning him to court but is persuaded to stay.

Reynard the Fox: Tibert the Cat

Reynard the Fox invites Tibert the Cat to spend the night. Tibert is summoning him to court but is persuaded…

"School-house where Thomas Jefferson received his early education." -Gordy, 1916

Schoolhouse

"School-house where Thomas Jefferson received his early education." -Gordy, 1916

"A ladder leaning against a wall casts it shadow partly on the wall C; it is continued on an open door not perpendicular with its connecting wall; and lastly upon the ground. Project also the shadow of the door. Let A be the source of light" (Britannica, 1891)

Shadow of an Ladder

"A ladder leaning against a wall casts it shadow partly on the wall C; it is continued on an open door…

A type of door used in a silo.

Iowa Silo

A type of door used in a silo.

The Arabian square panel is found on a 16th century wooden door.

Arabian Square Panel

The Arabian square panel is found on a 16th century wooden door.

This Renaissance square panel is found on the door of the Madonna di Galliera in Bologna, Italy.

Renaissance Square Panel

This Renaissance square panel is found on the door of the Madonna di Galliera in Bologna, Italy.

This Renaissance square panel is found on the door of the Madonna di Galliera in Bologna, Italy.

Renaissance Square Panel

This Renaissance square panel is found on the door of the Madonna di Galliera in Bologna, Italy.

This Renaissance square panel is found on the door of the Madonna di Galliera in Bologna, Italy.

Renaissance Square Panel

This Renaissance square panel is found on the door of the Madonna di Galliera in Bologna, Italy.

An illustration of stairs outside of a home with a door below.

Stairs

An illustration of stairs outside of a home with a door below.

The step in front of a door.

Step

The step in front of a door.

This image depicts a man and a donkey walking under The Tower of Justice, the original entrance gate to the Alhambra. The Alhambra is a fortress in Granada, Spain that was built in 1348 by Yusuf I.

The Tower of Justice

This image depicts a man and a donkey walking under The Tower of Justice, the original entrance gate…

This thin vase is a pilaster of a door in San Agostino, Rome.

Thin Vase

This thin vase is a pilaster of a door in San Agostino, Rome.

An adult woman knocking on a door.

Visitor

An adult woman knocking on a door.

Hasbrouck House served as Washington's headquarters during the Revolutionary War from April 1782 until August 1783. It was chosen for its comparatively safe location north of the strategically important West Point. The 7,000 troops of the Continental Army were encamped near what is today known as Vails Gate, a few miles to the southwest.

Entrance to Washington's Headquarters, Newburgh

Hasbrouck House served as Washington's headquarters during the Revolutionary War from April 1782 until…

A window with a hinged sash that swings in or out like a door comprising either a side-hung, top-hung, or occasionally bottom-hung sash or a combination of these types, sometimes with fixed panels on one or more sides of the sash.

Casement Window

A window with a hinged sash that swings in or out like a door comprising either a side-hung, top-hung,…

An illustration answering the door to find a young girl.

Woman Answering Door

An illustration answering the door to find a young girl.

A cartoon of a woman standing on a ledge.

Woman Standing on Ledge

A cartoon of a woman standing on a ledge.