The Palácio Nacional de Mafra (National Palace of Mafra) consists of a palace, basilica, convent (which includes a library), Cerco Garden and hunting park (Tapada). Built in the years 1717-1755 in the baroque and neoclassical styles. The entire complex covers 37,790 square meters with approximately 1,200 rooms.
As a museum, it officially opened to the public in 1911. Currently, the National Museum of Music is being moved to the palace complex.

Palacio Real de Madrid (Royal Palace of Madrid) built between 1735-1764 in the classical baroque style. It is the official residence of the Spanish royal family and the largest royal palace in Western Europe. It has 3,418 rooms and covers an area of 135,000 square meters.
The palace is decorated with frescoes by Giovanni Battista Tiepolo and Anton Raphael Mengs. The interiors exhibit oil paintings by artists such as Caravaggio, Francisco de Goya, Velázquez and a set of five string instruments made by Antonio Stradivari (Stradivarius Palatinos). The palace houses, among others, the Royal Armory and the Crown Room.
The origins of the museum date back to 1935.

Palazzo Ducale founded in 1340. From 1923 changed to a museum. Includes, among others, Museo dell'Opera, Doge's apartments, Institutional chambers.

Palazzo Reale di Milano (the Royal Palace of Milan) with medieval origins, renovated many times. In the years 1773-1778 restored in the Neo-Classical style, then the most famous interior of the Hall of the Caryatids (46 by 17 meters) was arranged, destroyed in 1943 during World War II.
In 1980, repair projects for the interior of the palace began in order to create a "Palace Museum", which, however, did not come into being. Currently, the Municipality of Milan organizes loud international exhibitions of modern and contemporary art in the palace. The Museum of the Duomo of Milan has been operating in the wing of the palace since 2013.
The palace covers an area of 7,000 square meters.

Parco archeologico del Colosseo founded in 2017.
It covers the most important monuments and historical places of ancient Rome, among others: The Colosseum, The Palatine, Roman Forum, Arch of Constantine and Meta Sudans, The Domus Aurea.

Parco Archeologico di Pompei has been operating under its current name since 2017.
Parco Archeologico di Pompei covers an area of ​​67 hectares of the ancient city covered with a layer of volcanic ash and pumice stone by the volcano Vesuvius during the eruption in 79 AD. At the Parco Archeologico di Pompei you can visit, among others: the Amphitheater, the Temple of Apollo, the House of Faun.

Pena Palace built in 1842–1854 for King Ferynand II by the engineer Wilhelm von Eschwege. The eclectic palace is one of the main objects of the 19th century Romanticism in the world. The palace is surrounded by a 200-hectare forest park.

Pergamonmuseum opened to the public in 1930.
It is part of the Staatliche Museen zu Berlin belonging to Stiftung Preußischer Kulturbesitz.
The exhibition is divided into Antiquities Collection, Museum of the Ancient Near East, Museum of Islamic Art. The Pergamonmuseum collects monuments of ancient architecture, e.g. the Pergamon Altar, the Ishtar Gate.

Pergamonmuseum
Am Kupfergraben, Museumsinsel Berlin, Berlin-Mitte
© Staatliche Museen zu Berlin / Maximilian Meisse

Peterhof Palace built by Tsar Peter the Great in 1714–1723. The palace and park complex with numerous fountains, among others the Grand Cascade. Area: 3 934 hectares.

Petit Palais founded in 1900.
Petit Palais - City of Paris Fine Art Museum presents collections of: medieval and Renaissance paintings and drawings, furniture from the 18th century, works of French artists of the 19th century (among others: Ingres, Delacroix, Courbet, Monet, Cézanne, Modigliani, Rodin).

Petra - a historic and archaeological city with numerous structures carved into the rocks.
The following periods are distinguished in the development of Petra's architecture:
- Nabatean (3rd-2nd century BC),
- Hellenistic (1st century BC - 1st century AD),
- Roman (2nd-3rd century AD),
- Byzantine (4th-6th century AD).
The most famous examples of Petra's architecture are:
- Al-Khazneh (Treasury),
- en-Nejr theater,
- the Urn Tombs,
- Qasr al-Bint temple,
- Ad Deir (Monastery).
Within the ancient city are the Petra Archaeological Park (PAP), which covers an area of 264,000 square meters, and the Petra Museum with its 280 artifacts.

The Philadelphia Museum of Art was founded in 1876.
It has significant collections of European, American and Asian art. The Philadelphia Museum of Art includes, among others: the world's largest collection of works by Marcel Duchamp, an important collection of sculptures by Auguste Rodin, important paintings by Édouard Manet, Claude Monet, Pierre-Auguste Renoir, Paul Cézanne and Vincent van Gogh, the richest collection of paintings in the USA by Thomas Eakins, a collection of Paul Strand's photographs, Shakers' crafts, numerous "period rooms" and architectural ensembles from around the world, e.g. from China, India, Japan, United Kingdom and France, a collection of weapons and combat gear second largest in the USA.
The entire collection of the Philadelphia Museum of Art includes over 240,000 exhibits.

Prague Castle - a castle complex built from the 9th century in all historical architectural styles. One of the largest castles in the world, it covers an area of almost 7 ha. It was the seat of Czech kings, Roman emperors and Czechoslovak presidents. It stores the Czech Crown Jewels.
Main objects:
- Old Royal Palace
- St. Vitus Cathedral
- St. George's Basilica
- Queen Anne's Summer Palace (Belvedere)
- Spanish Hall
- Vladislav Hall
There are several museums in the castle, including:
- collection of Czech baroque and mannerism of the National Gallery
- Prague Castle picture gallery, referring to the collection of Rudolf II
- exhibition on the history of the Czech Republic
- toy museum

Photo: © Prague City Tourism

PT Taman Wisata Candi Borobudur, Prambanan, dan Ratu Boko (commonly abbreviated TWC) founded in 1980 is a state-owned company that deals with the management of tourist facilities.
PT TWC manages primarily:
- Borobudur - the largest Buddhist temple complex in the world, built between 750 and 850 CE
There are three museums in the Borobudur Temple Visitor Park area: Museum Borobudur, Museum Karmawibhangga, and Museum Samudraraksa.
- Prambanan - a Hindu temple complex originally built in 850 CE
- Ratu Boko - palace complex from the 8th and 9th centuries
- Taman Mini "Indonesia Indah" (TMII) covers an area of approximately 100 ha and consists of:
Indonesia Museum
Purna Bhakti Pertiwi Museum
Soldier Museum
Indonesian Stamps Museum
Pusaka Museum
Transportation Museum
Museum Electricity & New Energy Museum
Telecommunication Museum
Penerangan Museum
Sports Museum
Asmat Museum
Komodo Indonesian Fauna Museum and Reptile Park
Insects Museum
Research & Technology Information Center
Oil & Gas Museum
East Timor Museum
Museum Bayt Al-qur'an Dan Museum Istiqlal
Museum Hakka Indonesia

Pushkin State Museum of Fine Arts was opened in 1912.
Currently, it has around 700,000 European art exhibits.