The Fifteenth Century Bookshop in Lewes High Street, Lewes, East Sussex, England, United Kingdom

Convent of San Francisco, a Parador, Granada, Andalucia, Spain, Europe

Convent of San Francisco, a Parador, Granada, Andalucia, Spain, Europe

Convent of San Francisco, a Parador, Granada, Andalucia, Spain, Europe

Fifteenth century Ye Olde River House dating from 1490 reflected in the ford, in the village of Kersey, Suffolk, England, United Kingdom, Europe

Lobby and bar, Kruisheren Hotel, nave, former Kruisheren or Kreuzherren monastery, Crosier religious order, fifteenth-century church, Maastricht, Netherlands

Lobby and bar, Kruisheren Hotel, nave, former Kruisheren or Kreuzherren monastery, Crosier religious order, fifteenth-century church, Maastricht, Netherlands

The church of San Martino was built in 1006. In 1884, restoration work gave it its current neo-Gothic appearance. Inside there are fifteenth-century frescoes depicting S. Caterina, the Madonna and S. Giovanni Battista. Palestro, Pavia, Lombardy, Italy, Europe

The church of San Martino was built in 1006. In 1884, restoration work gave it its current neo-Gothic appearance. Inside there are fifteenth-century frescoes depicting S. Caterina, the Madonna and S. Giovanni Battista. Palestro, Pavia, Lombardy, Italy, Europe

Exterior frescoes, portion of 'Last Judgement', Voronet Monastery, 1487; Gura Humorului, Suceava County, Romania

View of the Lighthouse on San Giorgio Maggiore Island looking across the waterway of Bacino Di San Marco to St Mark's Campanile, St Mark's Square, Doge's Palace on and the City of Venice Island under a blue sky, Venice, Veneto, Italy

Interior fresco, Church of the Holy Cross, 1487; Patrauti, Suceava County, Romania

Icon of Jesus, 15th century, Russian Museum (Mikhailovsky Palace), St. Petersburg, Russia

Interior fresco, Church of the Holy Cross, 1487; Patrauti, Suceava County, Romania

Fresco of Mitropoli, Voronet Monastery, 1487; Gura Humorului, Suceava County, Romania

Exterior frescoes, portion of 'Last Judgement', Voronet Monastery, 1487; Gura Humorului, Suceava County, Romania

The sacred city of Machu Picchu sunlit and enveloped in low clouds; Cusco, Peru

Exterior frescoes, 'Last Judgement', Voronet Monastery, 1487; Gura Humorului, Suceava County, Romania

Exterior frescoes, 'Tree of Jesse', Voronet Monastery, 1487; Gura Humorului, Suceava County, Romania

Interior fresco, Church of the Holy Cross, 1487; Patrauti, Suceava County, Romania

Exterior frescoes, 'Last Judgement', Voronet Monastery, 1487; Gura Humorului, Suceava County, Romania

Stunning vista of the City of Venice with St Mark's Campanile and Chiesa Santa Maria della Salute at Punta della Dogana, viewed from the bell tower of San Giorgio Maggiore Island, Venice, Veneto, Italy

Holy Monastery of Varlaam, Meteora; Thessaly, Greece

Detail of clock tower and statues along a roofline; Venice, Veneto, Italy

Holy Monastery of Varlaam, Meteora; Thessaly, Greece

Early morning mist around Charles Bridge on the Vltava river; Prague, Czech Republic

Church of the Holy Cross, 1487; Patrauti, Suceava County, Romania

Interior fresco, Church of the Holy Cross, 1487; Patrauti, Suceava County, Romania

Monastery of the Holy Trinity, Meteora; Thessaly, Greece

Ruins of the Wall of Ostrica, also know as Bedem Grebastika, is a medieval defensive and protective wall, Grebastika, Croatia

Spasskaya Tower (left), Dvortsovaya Tower (right), both 15th century, Kremlin Wall, Veliky Novgorod, Novgorod Oblast, Russia

Spasskaya Tower, built in the 15th century, Kremlin Wall, Veliky Novgorod, Novgorod Oblast, Russia

Albania, Tirane, Tirana, Equestrian statue of national hero George Castriot Skanderbeg in busy Skanderbeg Square with the Opera House in the background.

Germany, Bavaria, Munich, Marienplatz. Altes Rathaus or Old Town Hall. Original building dating from the fifteenth century with baroque facade added in the seventeenth century. Detail of clock tower.

Germany, Bavaria, Munich, Marienplatz. Altes Rathaus or Old Town Hall. Original building dating from the fifteenth century with baroque facade added in the seventeenth century. Angled detail of facade and clock tower.