5 Sights in Gubbio, Italy (with Map and Images)

The Cretaceous–Paleogene (K–Pg) boundary, formerly known as the Cretaceous–Tertiary (K–T) boundary, is a geological signature, usually a thin band of rock containing much more iridium than other bands. The K–Pg boundary marks the end of the Cretaceous Period, the last period of the Mesozoic Era, and marks the beginning of the Paleogene Period, the first period of the Cenozoic Era. Its age is usually estimated at around 66 million years, with radiometric dating yielding a more precise age of 66.043 ± 0.011 Ma.

Wikipedia: Cretaceous–Paleogene boundary (EN)

The Palazzo dei Consoli is a Gothic architecture, civic building in the historic center of Gubbio, region of Umbria, Italy. Construction took place during 1332–1349 under design by Angelo da Orvieto; the palace was built on a large platform built against the hillside and looming over the town below.

Wikipedia: Palazzo dei Consoli (EN)

The Cathedral of Saints Mariano and Giacomo is the main place of Catholic worship in Gubbio, Umbria. Mother church of the diocese of the same name, it is dedicated to Saints Mariano and Giacomo, martyrs in Lambaesis in Numidia, whose relics are preserved under the central altar.

Wikipedia: Duomo di Gubbio (IT)

The Civic Museum of Gubbio is located in the Palazzo dei Consoli and is now divided into various sections and collections, distributed over the five floors of the building: art gallery, ceramics section, archaeological collection, oriental collection and Risorgimento collection.

Wikipedia: Museo civico (Gubbio) (IT)

The Palazzo Ducale, also known as Corte Nuova, faces the cathedral of Gubbio and was built by the Duke of Urbino Federico da Montefeltro in 1470, in Renaissance style, on pre-existing medieval buildings.

Wikipedia: Palazzo Ducale (Gubbio) (IT), Website