Question: What well preserved star fortress is St. Alban's Church in Copenhagen next to?

<P0-S0> The fortress of Real Fuerte de la Concepción (English: Royal Fortress of the Conception) is a star fortress built in the Vaubanesque style. <P0-S1>  It is located 0.6 mi west of the village of Aldea del Obispo in the province of Salamanca, western Spain, part of the autonomous community of Castile and León. <P0-S2>  The fortress was constructed there because of its position of great strategic significance due to its proximity to the border between Spain and Portugal which lies 0.4 mi to the west of the fortress. <P0-S3>  The Fortress of the Concepcion is also opposite the Portuguese castle fortress of Almeida which lies 5.5 mi west-north-west of the fortress. <P0-S4>  In 2006, the derelict fortress was sold privately and the site was renovated into a luxury hotel which opened in 2012. <SEP> <P1-S0>  The Karkhanis or Superintendent of the fort was a Prabhu. <P1-S1>  It was surrendered in 1818 to Vitthal Pant Phadnis of the Raja of Satara left in charge of the town. <P1-S2>  It would appear that attacks were dreaded chiefly from the plain below. <P1-S3>  The fort is believed to have been built by Shivaji to resist the Moghals whose attacks he must have dreaded from the plain below. <P1-S4>  The cone with the walls on it is seen from a great distance and appears very small indeed. <P1-S5>  The appearance from the fort of the plain in the north is most formidable. <P1-S6>  Next to and on the north of Bhairavnath's temple is another pond. <P1-S7>  It leads out to the path down to Girvi, a village in the plains below and it probably formed the communication with Phaltan. <P1-S8>  After passing the southern gateway the assailants would be commanded Maan, Maharashtra from the lower citadel. <P1-S9>  On the right side of the southern gate is a well preserved stone pond about thirty yards square with steps leading down to it. <P1-S10>  This road winds down the face of the range for some five hundred feet till it hits the shoulder of a spur which it then follows to the base. <P1-S11>  The gate lies about 150 yards east of the edge of the plateau, which there terminates in an almost unbroken vertical precipice of several hundred feet in height and receding in a north-easterly direction. <P1-S12>  If that obstacle was overcome the besieged would run round the east side and into the two citadels. <P1-S13>  The path up the hill side, which is steep but with grass and soil left in Man y places, is almost destroyed. <P1-S14>  Its entrance lies close below that to the upper citadel. <SEP> <P2-S0> Kastellet, (English: The Citadel) located in Copenhagen, Denmark, is one of the best preserved star fortresses in Northern Europe. <P2-S1>  It is constructed in the form of a pentagram with bastions at its corners. <P2-S2>  Kastellet was continuous with the ring of bastioned ramparts which used to encircle Copenhagen but of which only the ramparts of Christianshavn remain today. <SEP> <P3-S0> St. Alban's Church, locally often referred to simply as the English Church, is an Anglican church in Copenhagen, Denmark. <P3-S1>  It was built from 1885 to 1887 for the growing English congregation in the city. <P3-S2>  Designed by Arthur Blomfield as a traditional English parish church in the Gothic Revival style, it is in a peaceful park setting at the end of Amaliegade in the northern part of the city centre, next to the citadel Kastellet and the Gefion Fountain and Langelinie.