On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A magnificent collection of imperial armor and weaponry.

An early 20th-century bullring converted into a modern shopping center.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

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

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

It was once nicknamed "the most bombed hotel in Europe."

A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

Single runway interrupted by a busy road that cuts across its middle.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

One of Ireland's most infamous prisons for rebels including men, women and children.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

A particularly disconcerting tribute to Irish martyrs.

The modern birthplace of Irish freedom.

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

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The house where the writer spent his formative years.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

After it was swallowed by a Georgian mansion, this medieval castle remained forgotten for centuries.