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

Apartment complexes built into huge repurposed natural gas tanks.

The beautiful baroque library of the Hapsburg empire.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

Too much gossip or just missing curfew could land you in here for a couple of days.

A gorgeous stone viaduct crosses over a bucolic valley.

An unusual cave filled with rare alien-looking aragonite formations.