Klekkende Høj is a megalithic tomb which dates possibly from the Neolithic Age, ca. 4500 years ago. It one of the best preserved of more than 100 burial mounds on the island. The tomb is a passage grave, which means that the central chamber within the mound is reached by a connecting passage. Klekkende Høj is unusual in that there are two entrance passages running approximately parallel to each other, facing east. Within the mound is a central space running approximately north-south, which is divided through the centre by two large stones. One passage enters each half of the tomb. The entrance passages are approximately 7 metres long and sufficiently large for a crouching man. The central chambers are each approximately 4.5 metres long and larger, but not large enough for a man to stand. The chambers and passages are constructed from large stones set on edge, which support capstones laid flat across their tops. The whole was then covered by an earth mound.
The tomb was excavated in 1797 by Antoine de Bosc de la Calmette, who was governor of the island. Fifteen men worked for a week to dig down into the tomb and remove some of the capstones so that the contents could be removed. Inside were a considerable number of human remains, flint weapons, clay vessels and amber jewellery. These were sent to the National Museum of Denmark in Copenhagen. The tomb was then re-sealed.
The tomb has since been entered again and is now open to the public via the passage entrances. The southern chamber was restored in 1987 to make it safe. At that time, the northern chamber was considered to be sound, but it was later found that the capstones were in danger of slipping off their supports. This was restored in 2002, and electric light was also installed for the benefit of visitors.References:
The Palazzo Colonna is a palatial block of buildings built in part over ruins of an old Roman Serapeum, and has belonged to the prestigious Colonna family for over twenty generations.
The first part of the palace dates from the 13th century, and tradition holds that the building hosted Dante in his visit to Rome. The first documentary mention notes that the property hosted Cardinal Giovanni and Giacomo Colonna in the 13th century. It was also home to Cardinal Oddone Colonna before he ascended to the papacy as Martin V (1417–1431).
With his passing, the palace was sacked during feuds, and the main property passed into the hands of the Della Rovere family. It returned to the Colonna family when Marcantonio I Colonna married Lucrezia Gara Franciotti Della Rovere, the niece of pope Julius II. The Colonna"s alliance to the Habsburg power, likely protected the palace from looting during the Sack of Rome (1527).
Starting with Filippo Colonna (1578–1639) many changes have refurbished and create a unitary complex around a central garden. Architects including Girolamo Rainaldi and Paolo Marucelli labored on specific projects. Only in the 17th and 18th centuries were the main facades completed. Much of this design was completed by Antonio del Grande (including the grand gallery), and Girolamo Fontana (decoration of gallery). In the 18th century, the long low facade designed by Nicola Michetti with later additions by Paolo Posi with taller corner blocks (facing Piazza Apostoli) was constructed recalls earlier structures resembling a fortification.
The main gallery (completed 1703) and the masterful Colonna art collection was acquired after 1650 by both the cardinal Girolamo I Colonna and his nephew the Connestabile Lorenzo Onofrio Colonna and includes works by Lorenzo Monaco, Domenico Ghirlandaio, Palma the Elder, Salviati, Bronzino, Tintoretto, Pietro da Cortona, Annibale Carracci (painting of The Beaneater), Guercino, Francesco Albani, Muziano and Guido Reni. Ceiling frescoes by Filippo Gherardi, Giovanni Coli, Sebastiano Ricci, and Giuseppe Bartolomeo Chiari celebrate the role of Marcantonio II Colonna in the battle of Lepanto (1571). The gallery is open to the public on Saturday mornings.
The older wing of the complex known as the Princess Isabelle"s apartments, but once housing Martin V"s library and palace, contains frescoes by Pinturicchio, Antonio Tempesta, Crescenzio Onofri, Giacinto Gimignani, and Carlo Cesi. It contains a collection of landscapes and genre scenes by painters like Gaspard Dughet, Caspar Van Wittel (Vanvitelli), and Jan Brueghel the Elder.
Along with the possessions of the Doria-Pamphilij and Pallavacini-Rospigliosi families, this is one of the largest private art collections in Rome.