Børsen (The Stock Exchange) was built by Christian IV in 1619–1640 and is the oldest stock exchange in Denmark. It is particularly known for its Dragon Spire shaped as the tails of fourdragons twined together, reaching a height of 56 metres.
Christian IV had ambitions to turn Copenhagen into a metropolis and to strengthen the city's position as a commercial centre, he wanted a stock exchange along with the new merchant town Christianshavn he was constructing on the other side of the harbour. He asked Lorentz and Hans van Steenwinckel the Younger to design a building in Dutch renaissance with 40 small stalls at the ground floor and one big room at the upper floor.
The building was restored by Nicolai Eigtved in 1745 and internally renovated in 1855. It housed the Danish stock-market until 1974. In 1918, unemployed anarchists attacked Børsen, an attack that went to the Danish history books as 'stormen på Børsen' (the storm at the stock exchange).
References:The Roman Theatre of Mérida is a construction promoted by the consul Vipsanius Agrippa in the Roman city of Emerita Augusta, capital of Lusitania (current Mérida). It was constructed in the years 16 to 15 BCE. One of the most famous and visited landmarks in Spain, the Roman Theatre of Mérida is regarded as a Spanish cultural icon and was chosen as one of the 12 Treasures of Spain.
The theatre has undergone several renovations, notably at the end of the 1st century or early 2nd century CE (possibly during the reign of Emperor Trajan), when the current facade of the scaenae frons was erected, and another in the time of Constantine I (between 330 and 340), which introduced new decorative-architectural elements and a walkway around the monument. Following the theatre"s abandonment in Late Antiquity, it was slowly covered with earth, with only the upper tiers of seats (summa cavea) remaining visible.