An abandoned shipping control tower looks like a satellite perched at the end of a pier.

These engineering masterpieces are a dominant feature of the Belfast skyline.

A brisk climb up this solitary peak leads to the origin story of a towering figure in Irish history.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

This garden has existed for more than three centuries.

A memorial to two dedicated postal workers who lost their lives delivering mail.

Some believe that the stone once used to coronate Scottish kings resides inside this bar.

This colorful mosaic remembers one of Britain's most deadly peacetime fires.

The lasting remains of a bygone era of open-air meat markets.

A stone burial chamber that was also the site of religious rituals.

This pyramid is dedicated to all those who suffered martyrdom for civil and religious liberty in Scotland.

This ancient holy well is older than much of the city that surrounds it.

This striking monument pays tribute to those who died working the coal pits from the town of Cambuslang.

A war memorial dedicated to the Free French Naval forces of World War II.

The largest terracotta fountain in the world, built to commemorate Britain’s Victorian achievements.

A remarkable feat of Victorian engineering across the Firth of Forth.

An angelic, yet demonic-looking figurine presides over one of Glasgow's most ancient streets.

A multi-storied painting that depicts the area's rich and diverse maritime history.

The final resting place of one of the most important figures in the world of tea.

A 16th-century castle unexpectedly nestled within a post-war housing development.

People leave coins atop an unusual grave marker in one of Scotland's oldest burial grounds.

The Scottish Reformation leader's grave was paved over and is now a parking lot.

The small Scottish townhouse where the "Father of the National Parks" was born.