Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Where the Border Reivers of the Johnstone clan used to hide their stolen cattle.

Even though some of the buildings date back to the Victorian era, this research institute is still involved in cutting-edge astronomy research.

The most loyal of little dogs, or a Victorian era publicity stunt?

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

A remarkable feat of Victorian engineering across the Firth of Forth.

The incredible private taxidermy collection of an eccentric zoologist.

This early Norman castle was the first historical monument protected by an act of Parliament.

A masterpiece of Art Deco architecture hidden in plain sight in West London.

A 19th-century perch for spotting sailing ships now boasts one of the most iconic views in the Southern Hemisphere.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.

Mexico's astounding mummy museum with "the world's smallest mummy."

A vast necropolis where you'll find the elaborate mausoleums of Argentinian tango stars.

The final resting place of the liberator of Argentina is guarded around the clock by two soldiers.

The costumes depict the Kurent, the star character of the annual Kurentovanje festival.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

Thousands of slain Soviet soldiers are buried within the shadow of this enormous obelisk.

An exquisite Baroque church in Vienna's old town.

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.