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

Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.

The Guinness Record holder as the "tallest cinema in the world" is a building with screens in almost every one of its 12 floors

A scattered trail of street art adds a pop of color to the city's stark structures.

The site of the first international football match.

Inscribed on the gate are the names of 29 figures from the University's first five centuries.

A 200-year-old collection of oddities and medical paraphernalia.

This emblematic representation is said to bring the students good fortune.

This two-legged horse statue celebrates a beloved cartoonist and his quirky characters.

Vibrant paintings stretch across 600 feet of derelict railway.

The housing complex served as an anti-fascist fortress during the Austrian Civil War.

A set of outdoor stairs named in honor of a famous Austrian artist.

Apartment complexes built into huge repurposed natural gas tanks.

Visiting this café is like visiting the Austrian grandma you wish you had.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.

Op-art architecture designed for happiness.

A spherical "micro-nation" in the heart of Vienna.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The beautiful baroque library of the Hapsburg empire.