Germany, Hesse, Frankfurt, The Schirn Kunsthalle art gallery, Interior of it's glass dome.

Germany, Hesse, Frankfurt, the interior of the former Paulskirche or St Paul's Church building now used as an exhibition hall, memorial venue and meeting place.

Germany, Hesse, Frankfurt, the interior of the former Paulskirche or St Paul's Church building now used as an exhibition hall, memorial venue and meeting place.

England, Lancashire, Liverpool, Pier Head, The Port of Liverpool Building is one of Liverpool's Three Graces lining the city's waterfront and its dome is seen here from the steps of the Museum of Liv...

England, Lancashire, Liverpool, Pier Head, The Port of Liverpool Building is one of Liverpool's Three Graces lining the city's waterfront.

England, Lancashire, Liverpool, Pier Head, Group of buildings known collectively as The 3 Graces consisting of the Royal Liver Building, The Cunard Building and the Port of Liverpool Building.

England, Lancashire, Liverpool, Pier Head, Group of buildings known collectively as The 3 Graces consisting of the Royal Liver Building, The Cunard Building and the Port of Liverpool Building.

England, Lancashire, Liverpool, Pier Head, Group of buildings known collectively as The 3 Graces consisting of the Royal Liver Building, The Cunard Building and the Port of Liverpool Building.

Spain, Valencia Province, Valencia, Dome of St Pius V Palace, the Museum of Fine Arts.

Spain, Valencia Province, Valencia, Dome of St Pius V Palace, the Museum of Fine Arts.

Spain, Castile and Leon, Salamanca, The Roman Bridge of Salamanca with Salamanca Cathedral behind.

Spain, Castile and Leon, Salamanca, Convento de las Duenas which is a Dominican convent built in the 15th and 16th centuries, Salamanca Cathedral seen from the upper cloister.