19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

A narrow strip of land is home to the tallest migrating dunes in Europe.

The reconstruction of this prominent building fulfilled a long-written command.

The oldest housing complex in Riga is a mini timeline of architectural trends.

Eat a Nobel banquet from any year in the basement of Stockholm's City Hall.

Rebuilt several decades ago, its striking murals prevent it from being reconsecrated as a church.

The solemn exterior conceals an opulent interior of this 17th century church.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

Banksy's image of a naked man dangling from the window of a sex health clinic.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A sacred Ojibwe site covered in pictographs next to Lake Superior.

Little island known for its massive beachfront "flowerpot" pillars.

This no man's land slicing through the island is strewn with abandoned relics of another time.

These temples are among the oldest free-standing stone buildings in the world.

In the sleepy town of Gozo exists a reproduction of the entire town of Bethlehem.

This 50-foot-deep sinkhole created in the 14th century is home to rare plants and fungi.

The medieval home is still engraved with the symbol of the profession, an eye flanked by two axes.

The ruins of a megalithic monument sit right in the garden of a luxurious Maltese resort.

This unique building in the main square stands out among the city's typically Baroque architecture.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.