Underpass with rock waterfalls
[Promenade Plantée - Coulée Verte - Viaduc des Arts]

Undoubtedly a gluhwein stall

Unfortunately photos are not allowed in the Frari
[San Polo - Venice - Italy]

Unfortunately the thick pollution and dust-coated buildings do not provide for colorful photography. [The Citadel and Mohammed
Unfortunately the thick pollution and dust-coated buildings do not provide for colorful photography. [The Citadel and Mohammed Ali Mosque - Cairo]

Unfortunately, by the 1950s the Sassi district was overtaken by squalor and poverty
[Sassi di Matera - Matera - Italy]

Unfortunately, photography is not permitted within the castle rooms [Cardiff Castle - Cardiff - Wales]
Unfortunately, photography is not permitted within the castle rooms [Cardiff Castle - Cardiff - Wales]

Ungaro
[Rome - Italy]

Uninterrupted views across the Straits of Gibraltar to Africa and Spain to the north
[Gibraltar - British Overseas Territory]

Union Street, Torquay
[Torquay - Devon - England]

Unity on the Continental Divide
[Continental Divide - Main-Danube Canal Locks]

University Church of St Mary the Virgin
St Mary's is the largest of the Oxford parish churches [University of Oxford - Oxford - England]

University of Granada: Faculty of Medicine
[Granada - Andalucia - Spain]

University of Oxford
[Oxford - England]

University of Oxford
[Oxford - England]

University of Oxford Botanic Garden - the oldest botanic garden in Britain
[[Oxford Botanic Garden - Oxford - England]