The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

These ancient ruins hide in plain sight next to a dessert shop.

Where commuters walk through remnants of an ancient Greek necropolis.

An ancient octagonal weather station named for the eight Greek gods of wind.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Legend says it was constructed with the destroyed pillar of an ancient Greek Temple.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

It's said this was once the home of King James V's pet lion.

These formal gardens were designed to be admired from the vantage point of the castle.

Even though some of the buildings date back to the Victorian era, this research institute is still involved in cutting-edge astronomy research.

Anonymously sculpted and donated, these sculptures made from poetry books and pages are sprinkled around the city.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

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

The remains of the oldest bone-headed dinosaur in North America.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A memorial to 350 people burned at the stake for witchcraft.

A bronze monument to his majesty, King Gino.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

This beautiful, historic church looks like something out of a simpler past.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This stunning concert hall has become a symbol of Iceland's national recovery.