Undergradutes never walk under the Campanile. Should the bell ring as they're walking under, they will fail their examinations

Underground passage to the Arc de Triomphe

Underground passageway

Underpass along the Promenade Plantée

Underpass with rock waterfalls

Undoubtedly a gluhwein stall

Unfortunately photos are not allowed in the Frari

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

Unfortunately, by the 1950s the Sassi district was overtaken by squalor and poverty

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

Ungaro

Uninterrupted views across the Straits of Gibraltar to Africa and Spain to the north

Union Street, Torquay

Unity on the Continental Divide

University Church of St Mary the Virgin