The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

This effigy of Peter the Great is greatly disproportionate.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

This cuddly rodent has a place of honor at a Russian institute for genetic research.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

This ten-ton fruit sculpture celebrates the Finland homeland.

This bridge over the River Cuale leads to a neighborhood that was once an escape for Hollywood's elite.

A Lovecraftian altar of nightmarish bronze chairs sits ominously on a boardwalk in Puerto Vallarta.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

A free public golf course hides in plain sight in the heart of Scotland’s capital.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

A sculpture in a secluded garden honors one of Edinburgh's most innovative thinkers and city planners.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

A sweet symbol marks the place where torturous executions were once carried out.

The fountain marks the area where hundreds of accused witches were burned at the stake.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

The bones of two medieval royal lions were discovered at the historic fortress.

A mysterious shape catches the eye in this 16th-century painting.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

An architectural oddity hides in plain sight on this iconic London bridge.