Collective Gallery

The City Observatory was an astronomical observatory on Calton Hill in Edinburgh, Scotland. It is also known as the Calton Hill Observatory. The site is enclosed by a boundary wall with a monument to John Playfair, president of the Edinburgh Astronomical Institution, in the southeast corner. The oldest part is the Gothic Tower in the southwest corner, facing Princes Street and Edinburgh Castle. It is also known as Observatory House, the Old Observatory, or after its designer James Craig House. The central building with the appearance of a Greek temple is the Playfair Building, named after the building's designer William Henry Playfair. This houses the 6-inch (15 cm) refractor in its dome and the 6.4-inch (16 cm) transit telescope in its eastern wing. The largest dome of the site is the City Dome in the northeast corner. During the early 20th century this contained a 22-inch (56 cm) refractor. In 2018, the entire site was restored and new buildings were added. The City Observatory site was opened freely to the public for the first time on 24 November 2018 as Collective, a centre for contemporary art.

The Edinburgh Astronomical Institution was founded in 1811 and wound up in 1847. It was instrumental in the foundation of the Royal Observatory, Edinburgh in 1822. The Institution raised funds, mostly by member subscription, to create three departments: A scientific observatory with an observer was to be under the control of the professors of mathematics, philosophy and astronomy of the University of Edinburgh, a popular observatory was to provide general instruction and amusement and a "physical cabinet" would comprise books, globes, meteorological and other instruments.

The Nelson Monument is a commemorative tower in honour of Vice Admiral Horatio Nelson, located in Edinburgh, Scotland. It is situated on top of Calton Hill, and provides a dramatic termination to the vista along Princes Street from the west. The monument was built between 1807 and 1816 to commemorate Nelson's victory over the French and Spanish fleets at the Battle of Trafalgar in 1805, and his own death at the same battle. In 1852 a mechanized time ball was added, as a time signal to shipping in Leith harbour. The time ball is synchronized with the One O'Clock Gun firing from Edinburgh Castle. The monument was restored in 2009. The Royal Navy's White Ensign and signal flags spelling out Nelson's famous message "England expects that every man will do his duty" are flown from the monument on Trafalgar Day each year.

The Dugald Stewart Monument is a memorial to the Scottish philosopher Dugald Stewart (1753–1828). It is situated on Calton Hill overlooking the city of Edinburgh and was designed by Scottish architect William Henry Playfair.

Calton Hill () is a hill in central Edinburgh, Scotland, situated beyond the east end of Princes Street and included in the city's UNESCO World Heritage Site. Views of, and from, the hill are often used in photographs and paintings of the city. Calton Hill is the headquarters of the Scottish Government, which is based at St Andrew's House, on the steep southern slope of the hill. The Scottish Parliament Building and other prominent buildings such as Holyrood Palace lie near the foot of the hill. Calton Hill is also the location of several monuments and buildings: the National Monument, the Nelson Monument, the Dugald Stewart Monument, the old Royal High School, the Robert Burns Monument, the Political Martyrs' Monument and the City Observatory.The area lies between the Edinburgh districts of Greenside and Abbeyhill.

St. Andrew's House (SAH), on the southern flank of Calton Hill in central Edinburgh, is the headquarters building of the Scottish Government. The building stands on the site of the former Calton Gaol. Today, the turreted Governor's House is all that remains of the former prison, next to the Old Calton Burial Ground and Political Martyrs' Monument. The large Category A listed Art Deco-influenced building looks out over Waverley Station, the Canongate and Holyrood Park.

The National Monument of Scotland, on Calton Hill in Edinburgh, is Scotland's national memorial to the Scottish soldiers and sailors who died fighting in the Napoleonic Wars. It was intended, according to the inscription, to be "A Memorial of the Past and Incentive to the Future Heroism of the Men of Scotland".The monument dominates the top of Calton Hill, just to the east of Princes Street. It was designed during 1823–6 by Charles Robert Cockerell and William Henry Playfair and is modelled upon the Parthenon in Athens. Construction started in 1826 and, due to the lack of funds, was left unfinished in 1829. This circumstance gave rise to various nicknames such as "Scotland's Folly", "Edinburgh's Disgrace", "the Pride and Poverty of Scotland" and "Edinburgh's Folly".

The Bridewell was a prison in Edinburgh, Scotland, built by Robert Adam in 1791.The remains of the prison can still be seen built into the bottom part of the Scottish Government building on Regent Road.

Greenside is a district and parish in Edinburgh between Calton Hill and the New Town.

Lady Glenorchy's Church or Chapel in Edinburgh was a curious quoad sacra parish church founded in the 18th century, with an unusual history, both due to its enforced relocation caused by the building of Waverley Station and the splitting of the church in the Disruption of 1843.

Edinburgh Playhouse is a theatre in Edinburgh, Scotland. With 3,059 seats it is the second largest theatre in the UK after the Hammersmith Apollo. The theatre is owned by Ambassador Theatre Group.

The Old Calton Burial Ground is a cemetery in Edinburgh, Scotland. It located at Calton Hill to the north-east of the city centre. The burial ground was opened in 1718, and is the resting place of several notable Scots, including philosopher David Hume, scientist John Playfair, rival publishers William Blackwood and Archibald Constable, and clergyman Dr Robert Candlish. It is also the site of the Political Martyrs' Monument, an obelisk erected to the memory of a number of political reformers, and Scotland's American Civil War Memorial. The burial ground was altered following the construction of Waterloo Place in 1819, which divided the graveyard into two sections. Along with Edinburgh's other historic graveyards, Old Calton is managed by City of Edinburgh Council. The burial ground, including screen walls, and its monuments are protected as a category A listed building.