Inside this mansion turned museum, the works of prominent Croatian artists are on full display.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

This former estate of a fascist leader is now a burnt out ruin leading to a system of secret tunnels.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

Watch butterflies take flight before you fly.

A peculiar museum that includes many drunken tales, a drunk driving simulator, and much more.

This only museum in the world dedicated solely to mushrooms.

A memorial that honors the victims of a tragedy in Ukraine.

This historic castle was already in ruins by the 13th century.

An artist crafted this lonely left hand as an imagined relic from Singapore's history.

Just off the road outside Baguio, a gigantic lion's head carved into a mountain greets those driving by.

Hundreds of years ago, this lion-shaped door knocker could help a person accused of a crime find temporary safe haven in Durham Cathedral.

After public executions took place at this location, attendants would also attend a local horse race.

This massive Roman Catholic rosary is composed entirely of wood.

This beautifully situated lakeside Roman settlement was likely built during the reign of the Emperor Hadrian.

This iconic clock tower is the largest in the Philippines.

This unique structure allowed boats to bypass underwater mine barriers in the channel to enter the harbor.

Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

A rocky outcrop where monks hid their most holy relic while escaping Danish invaders.

The remains of a Dominican friary, once one of the largest of its kind in the United Kingdom.

This sculpture commemorates a naturalist and an illustrator whose work was a forerunner to modern field guides.

Home to the longest wooden escalators in the world.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

These lamps were created to expel sewer gases after an event known as The Great Stink.