5,208 articles
Royal Road
The Royal Road, also called the Persian Royal Road, was the main highway of the Persian Empire, running from Sardis to Susa under Darius I.
Royal School of Military Engineering
The Royal School of Military Engineering, also called the School of Military Engineering, Chatham, is the British Army's training establishment for the Royal Engineers, founded at Chatham in 1812.
Rubble mound breakwater
A rubble mound breakwater is the most common breakwater type, built of a stone core, filter layer, and armor layer, tolerating settlement and degrading gradually rather than failing suddenly.
Rubenshuis
The Rubenshuis (Rubens House) is a museum in Antwerp, Belgium, housed in the former residence and studio of Peter Paul Rubens, who bought the house in 1610.
Ruins of Buddhist Temples and Images
Ruins of Buddhist temples and images at Odisha's Diamond Triangle: Lalitgiri, Ratnagiri, and Udayagiri, excavated monasteries, stupas, relic caskets, and Mahayana-Vajrayana sculpture from the 2nd century BCE to the 13th century CE.
Rumah gadang
Rumah gadang, also called rumah bagonjong, is the traditional raised timber longhouse of the Minangkabau people of West Sumatra, Indonesia, with distinctive curved, upward-pointing roof ridges.
Runcorn Railway Bridge
The Runcorn Railway Bridge, also known as the Ethelfleda Bridge, is a Grade II listed railway bridge crossing the River Mersey between Runcorn and Widnes, opened in 1868.
Runyang Bridge
The Runyang Bridge (Runyang Yangtze River Highway Bridge) crosses the Yangtze River between Zhenjiang and Yangzhou in Jiangsu, China; opened in 2005, its 1,490 m suspension span was then China's longest.
Russell Senate Office Building
The Russell Senate Office Building, also known as the Old Senate Office Building, is the oldest of the three US Senate office buildings, opened in Washington, D.C., in 1909.
Rüstem Pasha Mosque
The Rüstem Pasha Mosque (Rüstem Paşa Camii) is an Ottoman mosque in Istanbul built by Mimar Sinan for Rüstem Pasha, grand vizier of Süleyman the Magnificent.
Ruth Rivera Marín
Ruth Rivera Marín, also known as Ruth María Rivera Marín, was a Mexican architect and educator, daughter of Diego Rivera, who helped complete the Museo Anahuacalli and led INBAL's architecture department.
Rutland Water
Rutland Water, also called Empingham Reservoir, is a pumped storage reservoir in Rutland, England, created by damming the River Gwash and completed in 1976 to supply drinking water to the East of England.
Rutting
Rutting is permanent deformation of a flexible pavement in the wheel path, accumulating with traffic and high temperatures, and one of the controlling distress modes in asphalt pavement design.
Rydal Mount
Rydal Mount is a Grade I listed house in Rydal, Cumbria, home of poet William Wordsworth from 1813 until his death in 1850, with a terraced 5-acre garden he designed; acquired by the Wordsworth Trust in March 2026.
Ryfast
Ryfast is a road project in Rogaland, Norway, completed in 2020, giving Ryfylke a ferry-free link to Stavanger through three tunnels, including the world's longest subsea road tunnel.
Ryoan-ji
Ryoan-ji (竜安寺) is a Rinzai Zen temple in northwestern Kyoto, founded in 1450 and best known for its rock garden of fifteen stones on raked white gravel.
Ryōgoku Bridge
Ryōgoku Bridge (両国橋) is a steel bridge over the Sumida River in Tokyo, first built in wood in 1659 and known for its Edo-period entertainment quarter.
Ryogoku Kokugikan
Ryogoku Kokugikan, the national sumo arena of Japan in Sumida, Tokyo, opened in January 1985 as the third hall of that name and hosts three annual Grand Sumo Tournaments.
Ryokan (inn)
A ryokan (旅館) is a traditional Japanese inn unique to Japan, offering tatami rooms, futon bedding, kaiseki meals, and communal baths often fed by natural hot springs.
Ryongsong Residence
The Ryongsong Residence (Residence No. 55) is the principal official residence of Kim Jong Un and Ri Sol-ju, a fortified compound in Pyongyang completed in 1983.
Ryugyong Hotel
The Ryugyong Hotel is an unfinished 105-story, 330-meter pyramid-shaped skyscraper in Pyongyang, North Korea, that has never opened since construction began in 1987.
Saadiyat Island
Saadiyat Island is a natural island near Abu Dhabi, United Arab Emirates, developed since the 2000s as the emirate's cultural district, home to Louvre Abu Dhabi.
Sabaean irrigation canals of Marib
The Sabaean irrigation canals of Marib were a network of canals and sluices in Yemen that spread Wādī Dhana floodwater over nearly 10,000 hectares in antiquity.
Sabarimala Temple
Sabarimala Temple (ശബരിമല), formally the Sabarimala Sree Dharma Sastha Temple, is a Hindu hill shrine to Lord Ayyappa in Kerala, India, drawing millions of pilgrims each year.
Sachs Covered Bridge
Sachs Covered Bridge, also known as Sauck's Bridge, is a historic covered bridge over Marsh Creek near Gettysburg, Pennsylvania, used by both armies in the 1863 Battle of Gettysburg.
Sacré-Cœur, Paris
Sacré-Cœur, French for Basilica of the Sacred Heart, is a white Romano-Byzantine basilica designed by Paul Abadie on Montmartre in Paris, begun in 1875 and consecrated in 1919.
Sacred Ensembles of the Hoysalas
Sacred Ensembles of the Hoysalas: serial UNESCO World Heritage Site (inscribed 2023) of three 12th-13th century Hoysala temples at Belur, Halebidu, and Somanathapura, Karnataka, India, known for stellate soapstone temples, hyper-real sculpture, and artists' signatures.
Sacred Heart Cathedral, Sarajevo
Sacred Heart Cathedral (Katedrala Srca Isusova), Sarajevo Cathedral: Neo-Gothic Catholic cathedral by Josip Vancaš, built 1884-1887, modeled on Notre-Dame de Dijon; largest in Bosnia and Herzegovina, seat of the Archbishop of Vrhbosna.
Sacyr
Sacyr, founded in 1986 as Sociedad Anónima de Caminos y Regadíos, is a Spanish infrastructure company in Madrid known for transport, social, and water concessions worldwide.
Sadd el-Kafara
Sadd el-Kafara is the ruin of an Old Kingdom Egyptian dam in the Wadi el-Garawi, one of the world's oldest known large dams, built around 2700 to 2600 BC.