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

This is the largest cemetery in Ireland and the first cemetery museum in the world.

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

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

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

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

One man's quest to save his town with a trail of record-breaking sculptures.

The ruins of Theodore Roosevelt's beloved ranch stand in a forgotten corner of a national park named after him.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

A quiet memorial to those who died saving others in the heart of the City of London.

Murals of the wild parties once held on the frozen River Thames.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

This London plaque marks the spot where David Bowie's famous alien made his debut.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

This small collection of rare books was uniquely locked up for safe keeping.

This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

The first archaeological site discovered by aerial photography.

The final resting place of the Emperor of the United States and Protector of Mexico.