Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

Pilgrimage site for star-crossed lovers.

One of the largest squares in Europe contains an entire artificial island.

The oldest botanical garden in the world that technically isn't the oldest.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

Something's missing between the arcades of the Palazzo della Ragione in "the city of the three withouts."

The tomb of the mythological founder of Padua is not hidden in some obscure crypt, but stands right in the middle of the city square.

This stately bank building hides a spectacular star-studded ceiling.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

This 16th-century house tells the city's history through old artifacts and quirky tales.

Charles Dickens described the concert room in this amazing Victorian hall as "the most perfect room in the world."

Pyramid shaped monument with a tall tale attached.

The tower was originally used as a chimney for the waste incinerator of St. John's Precinct and Market.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

Most of Britain's gold reserve was secretly stashed here after the start of World War II.

This whimsical public art installation is a unique homage to Liverpool's industrial heritage.

The grand complex of buildings that comprise Liverpool's Exchange Flags includes a vast World War II bunker that has been frozen in time.

A memorial to the politician who became Great Britain's first fatality to be caused by a locomotive.