This 18th-century fort surrounded by a moat was used to store gun powder and ammunition, and now sits in the middle of a large part in Dublin.

Fantastic stainless steel dragon gates complete with mesh wings.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A particularly disconcerting tribute to Irish martyrs.

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

This supermarket offers shoppers a window into the past alongside their groceries.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

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."

Though they've since been renamed, these two streets hint at Dublin's darker days.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

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

The oldest public library in Ireland.

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

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

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

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

This Ottoman-era Greek Orthodox Church was built to honor Agia Pareskevi, a Christian saint.

The home of Greece’s national poet sits crumbling in the middle of a popular tourist district.

An ancient Greek monument and a Byzantine church coexist inside this cave.

With no menu and no sign, this 130-year-old taverna doles out affordable home cooking.

When construction began on this hotel, developers were surprised to find the ruins of an ancient civilization.

A crushed gate and giant bronze head serve as a reminder of Greece's fight for freedom.

The site where hundreds of Greeks were tortured by the Nazi secret police is now a cosmetics store.