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."

Christ's blood preserved in a Belgian town.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Rebuilt remains of a temple to Roman god Mithras.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

The home of the first American-born saint is one of the only curved buildings in New York.

The oldest living tree in Manhattan comes shrouded in sinister legend.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

The most confusing clock in New York.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

Corn-inthian columns with a uniquely American take on neoclassical architecture.