A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

This 13th-century UNESCO-listed "lion's house" mosque is named after a repurposed lion sculpture.

A collection of over 700 chess sets in a beautiful historic building.

The ruins of a Roman temple from 1st Century BC with the only preserved inscription of “The Deeds of the Divine Augustus.”

This large Roman bath complex offers a window into ancient life in the arid Central Anatolian steppe.

Quite possibly the oldest love poem known to humankind.

The final resting place of soldiers' loyal canine companions.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Canada's largest dinosaur skeleton was hidden away in storage for more than 40 years.

Denmark’s oldest bakery is home to the 'Wednesday Snail,' one of the best cinnamon rolls on the planet.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

The legendary luxury train passage is commemorated with a charming museum inside its former eastern terminus.

Ancient serpentine sacrifice holder that has stood the test of time.

A fountain standing as a testament to a doomed alliance.

Large miniature theme park with 100-plus models.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A meow-velous tribute to a beloved street cat, made famous on the internet.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

A marvel of Byzantine engineering under the streets of Istanbul.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.