The majestic circular tiers of stone of the Theatre of Marcellus give you some idea of the huge edifice that the Emperor Augustus erected in 13 B.C..

When the stone hits the surface of the water, a circular pattern of waves appears.

Constructed from large blocks of light-coloured stone, the tower was made up of three stages: a lower square section with a central core, a middle octagonal section, and, at the top, a circular section.

A similar stone circular arrangement believed to be around 380 thousand years old was discovered at Terra Amata, near Nice, France.

Until the early 20th century, the chief ancient buildings at Sparta were the theatre, of which, however, little showed above ground except portions of the retaining walls ; the so-called Tomb of Leonidas, a quadrangular building, perhaps a temple, constructed of immense blocks of stone and containing two chambers ; the foundation of an ancient bridge over the Eurotas ; the ruins of a circular structure ; some remains of late Roman fortifications ; several brick buildings and mosaic pavements.

The old stone fort was demolished, and replaced by an unconventional set of army buildings on the west, and an unusual array of many round stone huts where the old fort had been: some of these circular huts are visible by the north and the southwest walls of the final stone fort.

On the fifth floor of the circular tower is a room designed for playing rackets, which is approached by a stone spiral staircase.

A circular stone building surmounted by a pyramid rests on a lower platform, square.

Since monks are not permitted to participate in archery they indulge in another popular sports called the daygo-a stone throwing sport, which involves throwing flat circular stone like a discus.

* The Hall of Prayer for Good Harvests ( 祈年殿 ) is a magnificent triple-gabled circular building, 36 meters in diameter and 38 meters tall, built on three levels of marble stone base, where the Emperor prayed for good harvests.

* The Imperial Vault of Heaven ( 皇穹宇 ) is a single-gabled circular building, built on a single level of marble stone base.

Unusually fine for their early date, and with a remarkably rich survival of evidence, these sites stand as a visible symbol of the achievements of early peoples away from the traditional centres of civilisation ... The Ring of Brodgar is the finest known truly circular late Neolithic or early Bronze Age stone ring and a later expression of the spirit which gave rise to Maeshowe, Stenness and Skara Brae

Both fountains had the same form: a stone basin ; six figures of tritons or naiads holding fish spouting water ; six seated allegorical figures, their feet on the prows of ships, supporting the pedestal, of the circular vasque ; four statues of different forms of genius in arts or crafts supporting the upper inverted upper vasque ; whose water shot up and then cascaded down to the lower vasque and then the basin.

In 1863, when the building had become a reading-room of the Bodleian, the arches were glazed, a new entrance was created on the north side in place of a circular window, with stone steps leading up to the entrance.

This roughly circular temple was found on top of Chapel Hill a little to the south of the fort, its walls of undressed stone facing with an earth and rubble infill enclosed an area measuring about 17¼ ft. across ; the insubstantial foundations indicate that the superstructure was at least half-timbered.

An open fire was lit at the top of a circular stone tower.

" Gladiator sacrifice " is the name given to the form of sacrifice in which an especially courageous war captive was given mock weapons, tied to a large circular stone and forced to fight against a fully armed Aztec warrior.

Along with numerous walls and resulting terraces, the site contained a sanctuary with circular stone pillars on the third terrace.

* the Pinfold, a stone circular structure within the centre of the town, built to imprison stray cattle.

Over the years they added a circular stone dairy and created a sumptuous garden.

Another improvement from the 12th century onwards was the creation of shell keeps, involving replacing the wooden keep on the motte with a circular stone wall.

Nuraghi are truncated conical towers of dry-laid stone, about 40 feet in diameter, sloping up to a circular roof some 50 feet above the ground.

This is a building with circular tower and doors facing the cardinal directions.

Largely complete by 1230, the castle was of typical Norman courtyard design, with a central square without a keep, bounded on all sides by tall defensive walls and protected at each corner by a circular tower.

Pei's design was based on a circular tower with concentric rings.

A new design was unveiled, combining a large square glass-enclosed atrium with a triangular tower and a circular walkway.

Behind the entrance to the hall is the circular main tower.

The circular tower at the north-west corner contains the octagonal dining room with a Minton tile floor, two fireplaces, and a vault of eight radial ribs running to a central boss.

Part of the medieval city walls is still visible in Piazza Fiera, along with a circular tower.

At the strategically important junction of the two arms of the Old Rhine stands the old castle de Burcht, a circular tower built on an earthen mound.

The four-level tower tapers at each stage with clasping buttresses on the three lower levels and circular buttresses on the fourth stage.

The castle's plan, circular floor with circular towers attached to it seems to have been inspired by the upper complex of the Herodion in the West Bank, which is also circular and has as well a large principal tower and three minor towers.

Restormel Castle is a classic example of this development with a perfectly circular wall and a square entrance tower while the later Launceston Castle, although more ovoid than circular, is another good example of the design and one of the most formidable castles of the period.

Largely complete by 1230, the castle was of typical Norman courtyard design, with a central square without a keep, bounded on all sides by tall defensive walls and protected at each corner by a circular tower.

At San Martino ( now San Martino della Battaglia ) there is a circular tower dominating the area, a memorial to Victor Emmanuel II.

Built in 1811 to the design of Daniel Alexander, it is a circular white tower with lighthouse keepers ' cottages to the rear.

The " His Master's Voice " logo as rendered in immense circular leaded-glass panels remains in the 1915 factory building tower, now converted to apartments.

The oldest known may be the circular stone tower in walls of Neolithic Jericho ( 8000 BC ).

Constructed from granite, it stands high and is a circular tower with straight sides.

It has a combination bell tower and hose tower, yellow and red brickwork, semi-circular wood windows, and a circular wood window in the gable end at the tower.

Thus, circular motion is itself one of the essential characteristics of completely perfect celestial existence.

Pattern for circular base piece B is diameter of Aj.

Zodiacal light and the gegenschein give some evidence for such a dust blanket, a phenomenon also to be expected if the dust before capture is in circular orbits about the sun, as indicated by the trend of the smaller visible meteors.

For circular fibers in a closely packed hexagonal array, the packing efficiency is given by: Af where Af, and 0.906 is the ratio of the area of a circle to that of the circumscribed hexagon.

This time scale is expressed in the form of tables of differences UTC-UTC ( k ) ( equivalent to TAI-TAI ( k )) for each participating institution k. ( The same circular also gives tables of TAI-TA ( k ), for the various unsynchronised atomic time scales.

There is no external ear but the large circular eardrum lies on the surface of the head just behind the eye.

This force is used in the formal definition of the ampere, which states that it is " the constant current that will produce an attractive force of 2 × 10 < sup >– 7 </ sup > newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum ".

This measure is the ratio of the length of a circular arc by its radius.

An equivalent definition is the radius of an unperturbed circular Newtonian orbit about the Sun of a particle having infinitesimal mass, moving with an angular frequency of radians per day ; or that length such that, when used to describe the positions of the objects in the Solar System, the heliocentric gravitational constant ( the product GM < sub >☉</ sub >) is equal to ()< sup > 2 </ sup > AU < sup > 3 </ sup >/ d < sup > 2 </ sup >.

Row n is shifted left circular by n-1 bytes.

If the resulting four kilobyte table size is too large for a given target platform, the table lookup operation can be performed with a single 256-entry 32-bit ( i. e. 1 kilobyte ) table by the use of circular rotates.

There is, however, in the centre a circular basin occupied by Lake Tsana.

If the pencil with the angle u2 is that of the maximum aberration of all the pencils transmitted, then in a plane perpendicular to the axis at O ' 1 there is a circular disk of confusion of radius O ' 1R, and in a parallel plane at O ' 2 another one of radius O ' 2R2 ; between these two is situated the disk of least confusion.

Later versions of this form consisted of a flat plate, either square or circular, which is kept normal to the wind by a wind vane.

If a circular building is aerodynamically smooth, and cooler than the ground, it can be passively cooled by the " dome effect.

Approximately half-way from the Brandenburg Gate is the Großer Stern, a circular traffic island on which the Siegessäule ( Victory Column ) is situated.

Another, more specialized route is the ' Deutsche Uhrenstraße ' (" German Clock Road "), a circular route which traces the horological history of the region.

Right angle weave is done using both ends of the fishing line, in which beads are strung in repeated circular arrangements, and the fishing line is pulled tight after each bead circle is made.