This monumental fountain has moved around the city multiple times.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

A 125-meter long "tribute to the Brazilian people."

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

Beautiful public park off the beaten path and away from tourists.

This stunning Brazilian library contains the largest collection of Portuguese texts outside of Portugal itself.

Building owners can take out tiles for free at this repository for historic building materials.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

A lively circle of dancers in the Georgian capital commemorates an ancient rite of spring.

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

With over 10,000 lights, this engineering marvel lights up the city after dark.

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

Site of the first radio and telephone broadcasting companies in Copenhagen.

A symbol for the opposition to nuclear power around the world.

This Danish castle is supposedly haunted by a woman too independent to not be a witch.

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.