Historic preservation

The Robie House is a National Historic Landmark and one of the most important works of Frank Lloyd Wright. It is considered to be the finest example of Prairie School architecture, a style that was inspired by the natural landscape of the American Midwest. The house is characterized by its low, horizontal lines, its cantilevered roofs, and its use of natural materials such as wood, brick, and glass.

Name: Frederick C. Robie House

Architect: Frank Lloyd Wright

Year Built: 1909-1910

Years of Historic Preservation or Restoration: 2009-2019

Location: 5757 S. Woodlawn Ave., Chicago, IL 60615

Style: Prairie School

Historic Preservation or Restoration Company: Frank Lloyd Wright Preservation Trust

The Gamble House is a National Historic Landmark and a California Historical Landmark. It is considered one of the finest examples of American Craftsman architecture. The house was designed by the Greene brothers, who were known for their use of natural materials, handcrafted woodwork, and stained glass. The Gamble House is also notable for its use of Japanese design elements, which were popular with Arts and Crafts architects at the time.

Name: The Gamble House

Architects: Charles Sumner Greene and Henry Mather Greene

Year Built: 1908

Years of Historic Preservation or Restoration: 1966-1967

Location: 4 Westmoreland Place, Pasadena, California

Style: American Craftsman

Historic Preservation or Restoration Company: University of Southern California

Fallingwater is a house cantilevered over a waterfall in Mill Run, Pennsylvania. It was designed by Frank Lloyd Wright and built in 1935 for the Kaufmann family. The house is considered one of the most important examples of American architecture and was designated a National Historic Landmark in 1963.

Name: Fallingwater

Architect: Frank Lloyd Wright

Year Built: 1935

Years of Historic Preservation or Restoration: 1963-1964

Location: Mill Run, Pennsylvania

Style: Organic architecture

Historic Preservation or Restoration Company: Western Pennsylvania Conservancy

Great Zimbabwe is a UNESCO World Heritage Site and one of the most important archaeological sites in Africa. It was the capital of a wealthy and powerful African trading empire that controlled much of the East African coast from the 11th to the 15th centuries CE. The site is known for its large circular wall and tower, which are made of dry stone and are some of the most impressive examples of this type of architecture in the world.

Name: Great Zimbabwe

Architect: Unknown

Year Built: 11th to 15th centuries CE

Years of Historic Preservation or Restoration: Ongoing since 1893

Location: Masvingo Province, Zimbabwe

Style: Great Zimbabwe style, a type of dry stone architecture

Historic Preservation or Restoration Company: Great Zimbabwe National Monument, managed by the National Museums and Monuments of Zimbabwe

Timbuktu is a UNESCO World Heritage Site that is known for its ancient mosques, mausoleums, and manuscripts. The city's historic architecture has been threatened by desertification, conflict, and neglect. However, in recent decades, there have been significant efforts to preserve and restore Timbuktu's cultural heritage.

Name: Timbuktu

Architect: Unknown

Year Built: 11th century

Years of Historic Preservation or Restoration: 1964-present

Location: Timbuktu, Mali

Style: Sudano-Sahelian architecture

Historic Preservation or Restoration Company: Various, including the United Nations Educational, Scientific and Cultural Organization (UNESCO), the Malian government, and the Aga Khan Foundation

The Old Town of Zanzibar is a UNESCO World Heritage Site that is known for its unique blend of Arab, Indian, and African architectural styles. The town was founded in the 16th century and served as a major trading center for centuries. It was once home to a large population of slaves, who were brought to the island from East Africa and the Indian subcontinent.

Name: Old Town of Zanzibar

Architect: Unknown

Year Built: 16th-19th centuries

Years of Historic Preservation or Restoration: 1985-present

Location: Zanzibar Island, Tanzania

Style: Swahili architecture

Historic Preservation or Restoration Company: Aga Khan Trust for Culture

The Forbidden City was built by the Ming dynasty emperor Yongle and took 14 years to complete. It was the imperial palace of China for over 500 years, until the end of the Qing dynasty in 1912. The palace is a UNESCO World Heritage Site and one of the largest and most impressive palaces in the world.

The Palace Museum has been conducting ongoing historic preservation and restoration work on the Forbidden City since the 1950s. This work has included repairing and restoring the buildings, as well as conserving the artifacts and artworks that are housed in the palace.

Name: The Forbidden City

Architect: Unknown

Year Built: 1420

Years of Historic Preservation or Restoration: Ongoing

Location: Beijing, China

Style: Chinese imperial architecture

Historic Preservation or Restoration Company: Palace Museum

Angkor Wat is a Hindu temple complex that was built in the 12th century by King Suryavarman II. It is the largest religious monument in the world, and is one of the most popular tourist destinations in Asia.

The temple complex has been undergoing a process of historic preservation and restoration since 1992. This work has been carried out by the APSARA, a government agency that is responsible for the protection and management of Angkor.

Name: Angkor Wat

Architect: Unknown

Year Built: 1115–1150

Years of Historic Preservation or Restoration: Ongoing since 1992

Location: Siem Reap, Cambodia

Style: Khmer architecture

Historic Preservation or Restoration Company: Authority for the Protection and Management of Angkor and the Region of Siem Reap (APSARA)

The Taj Mahal has been undergoing a number of preservation and restoration efforts since the 19th century. In 1905, the ASI began a major restoration project that included cleaning the marble, repairing the damage caused by pollution, and strengthening the foundation. In recent years, the ASI has also been using mud-pack therapy to restore the Taj Mahal's white marble.

The Taj Mahal is one of the most iconic buildings in the world, and its preservation is a top priority for the ASI. The agency has a number of ongoing projects to ensure that the Taj Mahal remains a shining example of Mughal architecture for generations to come.

Name: Taj Mahal

Architect: Ustad Ahmad Lahori

Year Built: 1632–1643

Years of Historic Preservation or Restoration: Ongoing

Location: Agra, India

Style: Mughal architecture

Historic Preservation or Restoration Company: Archaeological Survey of India (ASI)