Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Real bones which are said to have belonged to a Polish dragon.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

This floating sculpture of ice is a poignant reminder of nature's power.

This historic floating crane became an unlikely symbol of the port of Trieste.

The Adriatic's most famous wind can be reliably experienced in the city's Marina.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The ruins of a medieval monastery named after a type of tree.

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

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

A manifestation of modernist architectural ideas, this massive, multi-purpose building was one of the first of its kind in Southeast Asia.

Singapore's oldest Hindu temple.

Across this single-file rope bridge is what has been claimed to be the edge of continental Asia.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

This Singaporean food-court stall was home to the world's cheapest Michelin-starred meal.

The romance of early commercial flight still fills this Art Deco destination.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The world's tallest statue of an American hero.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Continuing the tradition of the dime museum in style.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.