The Clock Tower, dating back to the 14th century, defends the main gate to the citadel of the medieval old town. Sighisoara, Transylvania. Romania

Traditional russian house of Tulcea county dating back to the 19th century. The National Village Museum (Muzeul Satului), an open-air ethnographic museum at Herastrau Park, Bucharest. Romania

Holy Trinity Orthodox Cathedral (Catedrala Sfanta Treime). Sibiu, Transylvania. Romania

Windows of traditional Saxon houses in Viscri, a Unesco World Heritage Site. Brasov county, Transylvania. Romania

Piata Sfatului (Council Square) at dusk, with the former Council House, built in 1420, in the middle. Brasov, Transylvania. Romania

Frescoes by Zahari Zograf in the exterior of the Nativity Church. Rila Monastery (Monastery of Saint Ivan of Rila), the largest Eastern Orthodox monastery in Bulgaria. A UNESCO World Heritage Site. Ri...

Frescoes by Zahari Zograf in the exterior of the Nativity Church. Rila Monastery (Monastery of Saint Ivan of Rila), the largest Eastern Orthodox monastery in Bulgaria. A UNESCO World Heritage Site. Ri...

Toledo and the Tagus river at twilight, a Unesco World Heritage Site. Castilla la Mancha, Spain

Real Monasterio de Nuestra Senora de Guadalupe (Royal Monastery of Santa Maria of Guadalupe), a Unesco World Heritage Site. Guadalupe, Extremadura, Spain

The old town of Chinchon with the 15-17th century Plaza Mayor at dusk. Castilla la Mancha, Spain

Mural in Samarkand, Uzbekistan

Gur-e-Amir mausoleum of the Asian conqueror Timur (also known as Tamerlane, 1336-1405). It has a very important place in the history of Persian-Mongolian architecture. A Unesco World Heritage Site, Sa...

The Registan square and its three madrasahs. From left to right: Ulugh Beg Madrasah, Tilya-Kori Madrasah and Sher-Dor Madrasah. A Unesco World Heritage Site, Samarkand. Uzbekistan

Ota Darvoza, the western gate to the old town of Khiva. A UNESCO World Heritage Site, Uzbekistan

Nizami Ganjavi (1141-1209) was a 12th-century Persian Muslim poet. He is considered the greatest romantic epic poet in Persian literature. He was born in Ganja (modern-day Azerbaijan). Nizami Museum o...

Detail of the Holy Trinity Cathedral (Tsminda Sameba) of Tbilisi. Georgia, Caucasus

A mexican folk group, Mariachi Garibaldi, playing in Puerta del Sol. Madrid, Spain

The beach and village of Carvoeiro. Lagoa, Algarve, Portugal

Gur-e-Amir mausoleum of the Asian conqueror Timur (also known as Tamerlane, 1336-1405). It has a very important place in the history of Persian-Mongolian architecture. A Unesco World Heritage Site, Sa...

Gur-e-Amir mausoleum of the Asian conqueror Timur (also known as Tamerlane, 1336-1405). It has a very important place in the history of Persian-Mongolian architecture. A Unesco World Heritage Site, Sa...

The Shah-i-Zinda Ensemble includes mausoleums and other ritual buildings of 9-14th and 19th centuries. A Unesco World Heritage Site, Samarkand. Uzbekistan

The Registan square and its three madrasahs. From left to right: Ulugh Beg Madrasah, Tilya-Kori Madrasah and Sher-Dor Madrasah. A Unesco World Heritage Site, Samarkand. Uzbekistan

The Registan square and its three madrasahs. From left to right: Ulugh Beg Madrasah, Tilya-Kori Madrasah and Sher-Dor Madrasah. A Unesco World Heritage Site, Samarkand. Uzbekistan

City walls. Ark fortress, Bukhara, a UNESCO World Heritage Site. Uzbekistan

The main gate to the Khuna Ark citadel and the Kalta Minor minaret. Old town of Khiva (Itchan Kala), a Unesco World Heritage Site. Uzbekistan

Ota Darvoza, the western gate to the old town of Khiva, at dusk. In the right side, the Mohammed Amin Khan madrasah and the Kalta Minor minaret. A UNESCO World Heritage Site, Uzbekistan

The old town of Khiva (Itchan Kala), a Unesco World Heritage Site, seen from the Khuna Ark citadel. Uzbekistan

Kalon mosque. Bukhara, a UNESCO World Heritage Site. Uzbekistan

Juma mosque (Friday mosque, 18th century). The ceiling is supported by 215 wooden pillars. Khiva, a UNESCO World Heritage Site, Uzbekistan

Kalon mosque. Bukhara, a UNESCO World Heritage Site. Uzbekistan

The Charola, with its origin in the 12th century, was the Templar Knight's oratorium within the Convent of Christ. a UNESCO World Heritage Site. Tomar, Portugal

The traditional Christmas tree at Terreiro do Paco, the historic centre of Lisbon. Portugal

The MAAT (Museum of Art, Architecture and Technology), bordering the Tagus river, was designed by British architect Amanda Levete. Lisbon, Portugal (MR)

The MAAT (Museum of Art, Architecture and Technology), bordering the Tagus river, was designed by British architect Amanda Levete. Lisbon, Portugal (MR)

Trakai Island Castle on Lake Galve, the old capital of the Grand Duchy of Lithuania from 1321-1323. Trakai Historical National Park, a Unesco World Heritage Site. Lithuania

The sculpture “Three Muses" by Stanislovas Kuzma crowning the main entrance to the National Drama Theatre has become an icon of Vilnius. The muses of Drama (Calliope), Comedy (Thalia) and Tragedy (Mel...

Detail of a restaurant in the Old Town, a Unesco World Heritage Site. Riga, Latvia

A group of Caretos dancing during the Winter Solstice Festivities. Salsas, Tras-os-Montes. Portugal

Wooden mask used during the Winter Solstice Festivities. Tras-os-Montes, Portugal

The Festa dos Tabuleiros (Festival of the Trays) in Tomar. This festival is an ancient tradition, and the most important celebrated in the city, attracting people from all over the world. People parad...

Grona Lund, an amusement park. It is located on the Djurgarden island since 1883. Stockholm, Sweden

Obidos at dusk, one of the most beautiful medieval villages in Portugal, taken to the moors in the 12th century.

The serenity of a sunset in the Tagus river. Lisbon, Portugal

Nicola Cafe at twilight, a historic cafe in the famous Rossio Square. Lisbon, Portugal

Riad inside the medina of Essaouira, a Unesco World Heritage Site. Morocco

The blue and yellow contrast found in the Majorelle garden. Marrakech, Morocco

Birch trees. Autumn in the Serra da Estrela Nature Park, Portugal

Medieval path with beech trees and chestnut trees in autumn time. Serra da Estrela Nature Park, Portugal (MR)

Ribeira das Naus esplanade, along the Tagus river. Lisbon, Portugal

A tranquil walk at the Necessidades gardens, belonging to the Necessidades Palace, 18th century. Lisbon, Portugal (MR)

Collection of the Palazzo Massimo / Museo Nazionale Romano. Rome, Italy

Gold necklace and traditional costume of Minho. Our Lady of Agony Festivities, the biggest traditional festival in Portugal. Viana do Castelo.

Traditional big-headed masks of Minho at the historical centre of Viana do Castelo. Our Lady of Agony Festivities, the biggest traditional festival in Portugal.

Traditional big-headed masks of Minho at the historical centre of Viana do Castelo. Our Lady of Agony Festivities, the biggest traditional festival in Portugal.

Horseman during the Barrete Verde (Green Cap) festivities. Alcochete, Portugal

Walled city of Evora, a Unesco World Heritage Site. Portugal (MR)

Tomb of Luis de Camoes inside the church of the Jeronimos Monastery, a Unesco World Heritage Site. Lisbon, Portugal

Belem Cultural Center (Centro Cultural de Belem). Lisbon, Portugal (MR)

A very old cork-tree, dated from 1795.The cork from this tree gives 100.000 stopples for wine bottles. Aguas de Moura, Portugal