For the holidays, the tallest broadcasting tower in the Netherlands turns into one of the world's tallest Christmas trees.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Breathtaking and huge 430 year old maps of Italy.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

On the coast of Sardinia, a once-great mining village is finding new life as a coastal resort town.

This one-of-a-kind archeological site is home to strange prehistoric ruins, the original use of which is still a mystery.

Stalactites and stalagmites in a beautifully lit cave.

This space rocket-like Buddhist stupa sits atop two giant arches and can be seen from out at sea.

This peaceful sanctuary is one of the oldest Buddhist temples in Colombo.

This peaceful, round shrine in the middle of the Sri Lankan jungle acts as a beacon of peace.

This elaborate temple was built around one of the Buddha's teeth.

To gaze upon the visage of Sri Lanka's biggest Buddha, one must first pass through the Tunnel of Hell.

This mesmerizing architectural wonder will take your breath away with its unusual color patterns.

Huge herds of Asian elephants can be seen walking, bathing, and just chilling at this Sri Lankan park.

An ancient stone fortress considered by many to be the eighth wonder of the world.

An impressive century-old, to-scale topographical map of Guatemala.

Microscopic fossils suggest Australia may be the birthplace of sulphur-based life forms.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

Handcrafted thermal spa washes away each night with the tide.

Water-powered gadgets whirr to life in this quirky eco park.