Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.

Cascading waterfalls mark the gateway to the ancient burial place of Clan Macnab.

Two minuscule windows are tucked inside this medieval building.

This original castle in Kendal is 1,000 years old.

A giant pineapple, a symbol of hospitality, and an amazing vacation rental option.

Hidden in this modern shopping center is a relic of 16th-century capital punishment.

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

The main residence of the Erskine family and the hereditary keeper of the nearby royal Stirling Castle.

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

Legend says this rock was once a chopping block for public executions.

The castle that provided the setting for much of 'Monty Python and the Holy Grail' is now a pilgrimage site for fans.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

The statue of a legendary giant who carried Christ and shouldered the world's sins.

3,000 market stands in five former Zeppelin hangars.

A stone marker and sculpture in the city of Riga stake a claim for the very first community Christmas tree.

A statue built to honor the elite soldiers who fought for Latvia during World War I.

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

With a design inspired by traditional Latvian textiles, this monument honors the Latvian people who suffered under Soviet occupation.

This controversial statue once honoured a Russian Field Marshall, before ultimately being dismantled in a push to remove symbols of Russian influence.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

The oldest working Brewery in Britain.

A 13th-century fortified manor house that was once sieged during the English Civil War.

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.