The Marekerk church was designed by the city architect Arent van ’s-Gravesande in 1639-1649, who also designed the Bibliotheca Thysiana on Rapenburg 25. It was opened in 1649. The main entrance was designed by Jacob van Campen in 1659. The organ was built by Pieter de Swart around 1560 for the choir of the Pieterskerk and it was moved to the Marekerk in 1733 and enlarged by Rudolph Garrels. It was restored in 1966 by Flentrop Orgelbouw.
The carillon has a church bell by C. Wegewaert from 1647, with a diameter of 202.7 cm and it has a bell by Francois Hemony from 1663 with a diameter of 98.6 cm. The mechanical clock in the tower is by B. Eijsbouts in 1941, an electric winding mechanism was added later.
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.